Journal articles: 'Nanogenerator'

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Li, Weiping, Yupeng Zhang, and Chunxu Pan. "Graphene-based Nanogenerator: Experiments, Theories and Applications." MRS Proceedings 1782 (2015): 15–21. http://dx.doi.org/10.1557/opl.2015.677.

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ABSTRACTIn addition to the piezoelectric nanogenerators and triboelectric nanogenerators, recently, the graphene-based nanogenerator has been widely concerned because of its simple assembly, flexibility and high structural stability. There are many interesting effects in graphene applied for nanogenenrators including anion adsorption in electrolyte solution, ion channels in graphene sheets network and the strain (band engineering) effect, etc. In this paper, we focus explicitly on the experimental results, mechanisms and applications of the graphene-based nanogenerator, and introduce our recent research on the graphene-based nanogenerator based on "modulation of the graphene strain-energy band effect". This nanogenerator is expected to have potential applications in active sensors and sustainable power source.

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Mishra, Siju, P. Supraja, Vishnu V. Jaiswal, P. Ravi Sankar, R. Rakesh Kumar, K. Prakash, K. Uday Kumar, and D. Haranath. "Enhanced output of ZnO nanosheet-based piezoelectric nanogenerator with a novel device structure." Engineering Research Express 3, no. 4 (November 15, 2021): 045022. http://dx.doi.org/10.1088/2631-8695/ac34c3.

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Abstract We report a double-fold enhancement of piezoelectric nanogenerator output voltage with a simple design strategy. The piezoelectric nanogenerator is fabricated with ZnO nanosheets coated on both sides of the aluminum substrate in this new design strategy with necessary electrodes. The cost-effective hydrothermal method is employed to synthesize two-dimensional (2D) ZnO nanosheets on both sides of the aluminum substrate at a low growth temperature of 80 °C for 4 h. The ZnO nanosheets were characterized for their morphology, crystallinity, and photoluminescence property. The performance of nanogenerator fabricated with double-side coated aluminum substrate was compared to single-side coated aluminum substrate. The nanogenerators fabricated only with one side coating produced an output voltage of ∼170 mV. In contrast, the nanogenerators fabricated with double side coating produced an output voltage of ∼285 mV. The nanogenerator with double-side coating produced ∼1.7 times larger output voltage than that of single-side coated one. The enhancement in the output voltage is mainly due to ZnO nanosheet deformation along both sides and the electric field-induced synergetic effect between two front and back sides of piezoelectric nanogenerators. This nanogenerator fabrication technology has the potential to be scaled up for industrial production of piezoelectric energy collecting devices because of its simplicity and high output gain.

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Amangeldinova, Yerkezhan, Dimaral Aben, Xiaoting Ma, Heesang Ahn, Kyujung Kim, Dong-Myeong Shin, and Yoon-Hwae Hwang. "Enhancing Electrical Outputs of Piezoelectric Nanogenerators by Controlling the Dielectric Constant of ZnO/PDMS Composite." Micromachines 12, no. 6 (May 28, 2021): 630. http://dx.doi.org/10.3390/mi12060630.

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Structural optimizations of the piezoelectric layer in nanogenerators have been predicted to enhance the output performance in terms of the figure of merit. Here, we report the effect of dielectric constant on electrical outputs of piezoelectric nanogenerator using ZnO/PDMS composites with varied ZnO coverages. The dielectric constant of piezoelectric layers was adjusted from 3.37 to 6.75. The electrical output voltage of 9 mV was achieved in the nanogenerator containing the ZnO/PDMS composite with the dielectric constant of 3.46, which is an 11.3-fold enhancement compared to the value of the nanogenerator featuring the composite with high dielectric constants. Significantly, lowering the dielectric constant of the piezoelectric layer improves the electrical output performance of piezoelectric nanogenerators.

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Shao, Yicheng, Maoliang Shen, Yuankai Zhou, Xin Cui, Lijie Li, and Yan Zhang. "Nanogenerator-based self-powered sensors for data collection." Beilstein Journal of Nanotechnology 12 (July 8, 2021): 680–93. http://dx.doi.org/10.3762/bjnano.12.54.

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Self-powered sensors can provide energy and environmental data for applications regarding the Internet of Things, big data, and artificial intelligence. Nanogenerators provide excellent material compatibility, which also leads to a rich variety of nanogenerator-based self-powered sensors. This article reviews the development of nanogenerator-based self-powered sensors for the collection of human physiological data and external environmental data. Nanogenerator-based self-powered sensors can be designed to detect physiological data as wearable and implantable devices. Nanogenerator-based self-powered sensors are a solution for collecting data and expanding data dimensions in a future intelligent society. The future key challenges and potential solutions regarding nanogenerator-based self-powered sensors are discussed.

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Elvira-Hernández, Ernesto A., Omar I. Nava-Galindo, Elisa K. Martínez-Lara, Enrique Delgado-Alvarado, Francisco López-Huerta, Arxel De León, Carlos Gallardo-Vega, and Agustín L. Herrera-May. "A Portable Triboelectric Nanogenerator Based on Dehydrated Nopal Powder for Powering Electronic Devices." Sensors 23, no. 9 (April 22, 2023): 4195. http://dx.doi.org/10.3390/s23094195.

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Triboelectric nanogenerators (TENGs) based on organic materials can harvest green energy to convert it into electrical energy. These nanogenerators could be used for Internet-of-Things (IoT) devices, substituting solid-state chemical batteries that have toxic materials and limited-service time. Herein, we develop a portable triboelectric nanogenerator based on dehydrated nopal powder (NOP-TENG) as novel triboelectric material. In addition, this nanogenerator uses a polyimide film tape adhered to two copper-coated Bakelite plates. The NOP-TENG generates a power density of 2309.98 μW·m−2 with a load resistance of 76.89 MΩ by applying a hand force on its outer surface. Furthermore, the nanogenerator shows a power density of 556.72 μW·m−2 with a load resistance of 76.89 MΩ and under 4g acceleration at 15 Hz. The output voltage of the NOP-TENG depicts a stable output performance even after 27,000 operation cycles. This nanogenerator can light eighteen green commercial LEDs and power a digital calculator. The proposed NOP-TENG has a simple structure, easy manufacturing process, stable electric behavior, and cost-effective output performance. This portable nanogenerator may power electronic devices using different vibration energy sources.

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Elvira-Hernández, Ernesto A., Juan C. Anaya-Zavaleta, Eustaquio Martínez-Cisneros, Francisco López-Huerta, Luz Antonio Aguilera-Cortés, and Agustín L. Herrera-May. "Electromechanical Modeling of Vibration-Based Piezoelectric Nanogenerator with Multilayered Cross-Section for Low-Power Consumption Devices." Micromachines 11, no. 9 (September 17, 2020): 860. http://dx.doi.org/10.3390/mi11090860.

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Piezoelectric nanogenerators can convert energy from ambient vibrations into electrical energy. In the future, these nanogenerators could substitute conventional electrochemical batteries to supply electrical energy to consumer electronics. The optimal design of nanogenerators is fundamental in order to achieve their best electromechanical behavior. We present the analytical electromechanical modeling of a vibration-based piezoelectric nanogenerator composed of a double-clamped beam with five multilayered cross-sections. This nanogenerator design has a central seismic mass (910 μm thickness) and substrate (125 μm thickness) of polyethylene terephthalate (PET) as well as a zinc oxide film (100 nm thickness) at the bottom of each end. The zinc oxide (ZnO) films have two aluminum electrodes (100 nm thickness) through which the generated electrical energy is extracted. The analytical electromechanical modeling is based on the Rayleigh method, Euler–Bernoulli beam theory and Macaulay method. In addition, finite element method (FEM) models are developed to estimate the electromechanical behavior of the nanogenerator. These FEM models consider air damping at atmospheric pressure and optimum load resistance. The analytical modeling results agree well with respect to those of FEM models. For applications under accelerations in y-direction of 2.50 m/s2 and an optimal load resistance of 32,458 Ω, the maximum output power and output power density of the nanogenerator at resonance (119.9 Hz) are 50.44 μW and 82.36 W/m3, respectively. This nanogenerator could be used to convert the ambient mechanical vibrations into electrical energy and supply low-power consumption devices.

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Blanquer, Andreu, Oriol Careta, Laura Anido-Varela, Aida Aranda, Elena Ibáñez, Jaume Esteve, Carme Nogués, and Gonzalo Murillo. "Biocompatibility and Electrical Stimulation of Skeletal and Smooth Muscle Cells Cultured on Piezoelectric Nanogenerators." International Journal of Molecular Sciences 23, no. 1 (December 31, 2021): 432. http://dx.doi.org/10.3390/ijms23010432.

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Nanogenerators are interesting for biomedical applications, with a great potential for electrical stimulation of excitable cells. Piezoelectric ZnO nanosheets present unique properties for tissue engineering. In this study, nanogenerator arrays based on ZnO nanosheets are fabricated on transparent coverslips to analyse the biocompatibility and the electromechanical interaction with two types of muscle cells, smooth and skeletal. Both cell types adhere, proliferate and differentiate on the ZnO nanogenerators. Interestingly, the amount of Zn ions released over time from the nanogenerators does not interfere with cell viability and does not trigger the associated inflammatory response, which is not triggered by the nanogenerators themselves either. The local electric field generated by the electromechanical nanogenerator–cell interaction stimulates smooth muscle cells by increasing cytosolic calcium ions, whereas no stimulation effect is observed on skeletal muscle cells. The random orientation of the ZnO nanogenerators, avoiding an overall action potential aligned along the muscle fibre, is hypothesised to be the cause of the cell-type dependent response. This demonstrates the need of optimizing the nanogenerator morphology, orientation and distribution according to the potential biomedical use. Thus, this study demonstrates the cell-scale stimulation triggered by biocompatible piezoelectric nanogenerators without using an external source on smooth muscle cells, although it remarks the cell type-dependent response.

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Rafique, Sumera, Ajab Khan Kasi, Jafar Khan Kasi, Aminullah, Muzamil Bokhari, and Zafar Shakoor. "Fabrication of silver-doped zinc oxide nanorods piezoelectric nanogenerator on cotton fabric to utilize and optimize the charging system." Nanomaterials and Nanotechnology 10 (January 1, 2020): 184798041989574. http://dx.doi.org/10.1177/1847980419895741.

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Textile-based piezoelectric nanogenerator generates electrical energy from human motion. Here a novel type of textile-based piezoelectric nanogenerator is reported which is fabricated using the growth of silver-doped zinc oxide on carton fabric. Along with the optical and structural characterization of silver-doped zinc oxide nanorods, the electrical characterization was also performed for silver-doped zinc oxide piezoelectric nanogenerator. The silver-doped zinc oxide piezoelectric nanogenerator was found to generate three times greater power compared to undoped zinc oxide piezoelectric nanogenerator. By applying external mechanical force of 3 kgf and 31 MΩ of load resistance, the silver-doped zinc oxide piezoelectric nanogenerator generated an output power density of 1.45 mW cm−2. The effect of load resistance and load capacitor was determined and optimum values were calculated. The maximum output power was observed at a load resistance of 31 MΩ. The silver-doped zinc oxide piezoelectric nanogenerator was utilized to charge load capacitors and found that maximum energy could be stored at optimum load capacitance of 22 nF in 600 s (1800 cycles). This research may provide the opportunity to design high-output textile-based nanogenerators for practical applications like powering portable devices and sensors.

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Jiang, Yijing, Yongju Deng, and Hongyan Qi. "Microstructure Dependence of Output Performance in Flexible PVDF Piezoelectric Nanogenerators." Polymers 13, no. 19 (September 24, 2021): 3252. http://dx.doi.org/10.3390/polym13193252.

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Flexible piezoelectric nanogenerators have attracted great attention due to their ability to convert ambient mechanical energy into electrical energy for low-power wearable electronic devices. Controlling the microstructure of the flexible piezoelectric materials is a potential strategy to enhance the electrical outputs of the piezoelectric nanogenerator. Three types of flexible polyvinylidene fluoride (PVDF) piezoelectric nanogenerator were fabricated based on well-aligned nanofibers, random oriented nanofibers and thick films. The electrical output performance of PVDF nanogenerators is systematically investigated by the influence of microstructures. The aligned nanofiber arrays exhibit highly consistent orientation, uniform diameter, and a smooth surface, which possesses the highest fraction of the polar crystalline β phase compared with the random-oriented nanofibers and thick films. The highly aligned structure and the large fraction of the polar β phase enhanced the output performance of the well-aligned nanofiber nanogenerator. The highest output voltage of 14 V and a short-circuit current of 1.22 µA were achieved under tapping mode of 10 N at 2.5 Hz, showing the potential application in flexible electronic devices. These new results shed some light on the design of the flexible piezoelectric polymer-based nanogenerators.

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Dayana Kamaruzaman, Mohamad Hafiz Mamat, Nurul Izzati Kamal Ariffin, A Shamsul Rahimi A Subki, Mohd Hanapiah Abdullah, Norfarariyanti Parimon, Muhamad Kamil Yaakob, et al. "Effects of Thermal Annealing on The Morphology and Structural Characteristics of Zinc Oxide Nanopowders for Triboelectric Nanogenerator Applications." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 99, no. 1 (October 17, 2022): 17–27. http://dx.doi.org/10.37934/arfmts.99.1.1727.

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The influence of thermal annealing on the surface morphologies and structural characteristics of zinc oxide (ZnO) nanopowders synthesized via the solution immersion method for triboelectric nanogenerator applications is reported in this paper. The ZnO nanopowders were thermally treated at different temperatures of annealing in the ranges between 300°C to 700°C for 1 hour, and their surface morphologies and structural properties were studied using field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analysis. The ZnO nanopowders have a polycrystalline, hexagonal wurtzite structure and are composed of ZnO nanoparticles and hexagonal nanorods. ZnO based tribolectric nanogenerators were fabricated with these nanopowders and their performance was assessed in terms of the output voltage. It is found that the ZnO based triboelectric nanogenerator fabricated with ZnO nanopowders annealed at 500°C has superior performance compared with the other nanogenerators, with an average output voltage of 1.95 V. This corresponds to a fourfold increase in output voltage relative to that of the ZnO based triboelectric nanogenerator fabricated with as-deposited ZnO nanopowders. In conclusion, thermal annealing significantly influences particle size and crystallinity of ZnO nanopowders, which in turn, influences the output voltage of ZnO based triboelectric nanogenerators.

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MA, Yanran, Yongfa WANG, Li LI, and Chunchang WANG. "Efficient bio-assembled nanogenerator fabricated from chicken bone epidermis." Research and Application of Materials Science 4, no. 1 (June 30, 2022): 24. http://dx.doi.org/10.33142/rams.v4i1.8460.

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Using biological self-powered materials as a new energy source to replace traditional batteries to power micro-electronic devices is a current research hotspot. We herein fabricate a piezoelectric bio-nanogenerator from chicken bones. The nanogenerator can output a voltage of 1.25 V and a current of 9 nA after being subjected to a pressure of 30 N. This research facilitates an in-depth understanding of bio-nanogenerators and provides a new strategy for reusing bio-waste.

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Dallacasa, V. "Enhanced Size-Dependent Piezoelectricity in Nanostructured Films." ISRN Materials Science 2012 (May 8, 2012): 1–5. http://dx.doi.org/10.5402/2012/894072.

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We have developed a nanogenerator that is driven by mechanical forces to produce continuous direct-current output. The nanogenerator was fabricated with titanium dioxide nanoparticle arrays forming a Schottky barrier with a conducting electrode with a small gap. Under uniaxial mechanical compression, nanogenerators have shown repeatable and consistent electrical outputs with energy-conversion efficiency of order of magnitude at least comparable to similar nanogenerators based on piezoelectric materials. Flexoelectricity due to inhomogeneous strain induced in the nanostructured film has been identified as one possible mechanism of the high apparent piezoelectricity in the nanoparticles. The approach presents an adaptable, mobile, and cost-effective technology for harvesting mechanical energy from the environment. At the present stage it offers a potential solution for powering nanodevices.

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Wang, Kaiqiang, and Jinjin Li. "Electricity generation from the interaction of liquid–solid interface: a review." Journal of Materials Chemistry A 9, no. 14 (2021): 8870–95. http://dx.doi.org/10.1039/d0ta12073a.

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The mechanisms, classical designs, recent developments and applications of the liquid–solid nanogenerators are reviewed. And the existing problems and future developments of the liquid–solid nanogenerator are discussed and summarized.

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Sheng, Jian Guo, Ping Zeng, and Can Can Zhang. "Study of the Manufacture about Piezoelectric Nanogenerator under Micro Vibration and its Performance." Applied Mechanics and Materials 105-107 (September 2011): 2109–12. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.2109.

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With the development of science and technology, the smaller sizes generator, the more attention by people. The main purpose of this article is to manufacture piezoelectric nanogenerator under micro vibration and its working principle is introduced and its performance is studied. The results show that, using the present nanomaterials, piezoelectric materials can be prepared. When its wind in copper laps, under the situation of micro pulse vibration its can turn into electrical energy, thus yield piezoelectric nanogenerators. In ambient vibration condition, piezoelectric materials produce larger rated current and voltage. However, copper laps cutting magnetic line of force produce less rated current and voltage. So the piezoelectric nanogenerators can be separately used to supply power. If multiple piezoelectric nanogenerator in tandem may produce higher voltage, current and power, which possess commercial value.

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Lv, Mingqiang, Guan Liu, Yi Zhang, Linchong Han, and Jing Zhao. "Research on the electronic switch of power management circuits for triboelectric nanogenerator." Journal of Physics: Conference Series 2370, no. 1 (November 1, 2022): 012020. http://dx.doi.org/10.1088/1742-6596/2370/1/012020.

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Nowadays, people are increasingly interested in how to collect clean energy from nature more effectively. As an emerging harvest, triboelectric nanogenerators (TENGs) can collect a wide range of clean energy from nature. However, the energy generated by TENG can not be used directly for driving various miniature electronics. In this study, we have designed a triboelectric nanogenerator for wind energy harvesting, which consists of two simple generator sets. In addition, a power management circuit based on this triboelectric nanogenerator has been designed, which consists of a rectifier section, an electronic switch section, and a filter section. Among them, the most important part is the electronic switch section, and the electronic switch is based on triode characteristics. The experiment shows that the output voltage has been to stabilize at 3.89V when the triboelectric nanogenerator structure is in operation, and it can sustainably drive the LED in a stable working condition.

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Ye, Zhicheng, Shuai Liao, Fengxin Wang, Lianghao Mo, Guoming Li, and Yuanzheng Luo. "Light-Weight and Cost-Effective Spherical Triboelectric Nanogenerator for Effective Water Wave Energy Harvesting." IOP Conference Series: Earth and Environmental Science 966, no. 1 (January 1, 2022): 012011. http://dx.doi.org/10.1088/1755-1315/966/1/012011.

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Abstract Ocean wave energy is one of the most promising clean and renewable energy, triboelectric nanogenerators (TENGs) can be seen as a promising technology by harvesting blue energy to reduce greenhouse gas emissions. This work utilized a novel process to fabricate porous foam-shaped PDMS vibrator combined with aluminium metal electrode film and polyimide (Kapton) film to form a contact separation single electrode vibrating friction nanogenerator. The vibratory TENG with porous PDMS spherule (P-TENG) as vibrator enhanced the output performance with facile manufacturing process. The results show that the output voltage of the vibratory friction nanogenerator with porous spherules as the vibratory friction nanogenerator is 38.89% higher than that with solid ones and the charge accumulation and release period is eight times higher. Given the features of exceptional output performance, unprecedented robustness and universal applicability resulting from porous structure, the P-TENG is promising candidate for ocean wave energy harvesting in our water-wave experiment.

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Zhou, Xinran, Kaushik Parida, Oded Halevi, Shlomo Magdassi, and Pooi See Lee. "All 3D Printed Stretchable Piezoelectric Nanogenerator for Self-Powered Sensor Application." Sensors 20, no. 23 (November 26, 2020): 6748. http://dx.doi.org/10.3390/s20236748.

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With the rapid development of wearable electronic systems, the need for stretchable nanogenerators becomes increasingly important for autonomous applications such as the Internet-of-Things. Piezoelectric nanogenerators are of interest for their ability to harvest mechanical energy from the environment with its inherent polarization arising from crystal structures or molecular arrangements of the piezoelectric materials. In this work, 3D printing is used to fabricate a stretchable piezoelectric nanogenerator which can serve as a self-powered sensor based on synthesized oxide–polymer composites.

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Shin, Jaehee, Sungho Ji, Hanchul Cho, and Jinhyoung Park. "Highly Flexible Triboelectric Nanogenerator Using Porous Carbon Nanotube Composites." Polymers 15, no. 5 (February 24, 2023): 1135. http://dx.doi.org/10.3390/polym15051135.

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The rapid development of portable and wearable electronic devices has led researchers to actively study triboelectric nanogenerators (TENGs) that can provide self-powering capabilities. In this study, we propose a highly flexible and stretchable sponge-type TENG, named flexible conductive sponge triboelectric nanogenerator (FCS-TENG), which consists of a porous structure manufactured by inserting carbon nanotubes (CNTs) into silicon rubber using sugar particles. Nanocomposite fabrication processes, such as template-directed CVD and ice freeze casting methods for fabricating porous structures, are very complex and costly. However, the nanocomposite manufacturing process of flexible conductive sponge triboelectric nanogenerators is simple and inexpensive. In the tribo-negative CNT/silicone rubber nanocomposite, the CNTs act as electrodes, increasing the contact area between the two triboelectric materials, increasing the charge density, and improving charge transfer between the two phases. Measurements of the performance of flexible conductive sponge triboelectric nanogenerators using an oscilloscope and a linear motor, under a driving force of 2–7 N, show that it generates an output voltage of up to 1120 V and a current of 25.6 µA. In addition, by using different weight percentages of carbon nanotubes (CNTs), it is shown that the output power increases with the weight percentage of carbon nanotubes (CNTs). The flexible conductive sponge triboelectric nanogenerator not only exhibits good performance and mechanical robustness but can also be directly used in light-emitting diodes connected in series. Furthermore, its output remains extremely stable even after 1000 bending cycles in an ambient environment. In sum, the results demonstrate that flexible conductive sponge triboelectric nanogenerators can effectively power small electronics and contribute to large-scale energy harvesting.

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Mao, Yupeng, Yongsheng Zhu, Tianming Zhao, Changjun Jia, Xiao Wang, and Qi Wang. "Portable Mobile Gait Monitor System Based on Triboelectric Nanogenerator for Monitoring Gait and Powering Electronics." Energies 14, no. 16 (August 14, 2021): 4996. http://dx.doi.org/10.3390/en14164996.

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A self-powered portable triboelectric nanogenerator (TENG) is used to collect biomechanical energy and monitor the human motion, which is the new development trend in portable devices. We have developed a self-powered portable triboelectric nanogenerator, which is used in human motion energy collection and monitoring mobile gait and stability capability. The materials involved are common PTFE and aluminum foil, acting as a frictional layer, which can output electrical signals based on the triboelectric effect. Moreover, 3D printing technology is used to build the optimized structure of the nanogenerator, which has significantly improved its performance. TENG is conveniently integrated with commercial sport shoes, monitoring the gait and stability of multiple human motions, being strategically placed at the immediate point of motion during the respective process. The presented equipment uses a low-frequency stabilized voltage output system to provide power for the wearable miniature electronic device, while stabilizing the voltage output, in order to effectively prevent voltage overload. The interdisciplinary research has provided more application prospects for nanogenerators regarding self-powered module device integration.

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Du, Yuhang, Gang Jian, Chen Zhang, and Fengwei Wang. "Coral-like BaTiO3-Filled Polymeric Composites as Piezoelectric Nanogenerators for Movement Sensing." Polymers 15, no. 15 (July 27, 2023): 3191. http://dx.doi.org/10.3390/polym15153191.

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Piezoelectric nanogenerators have prospective uses for generating mechanical energy and powering electronic devices due to their high output and flexible behavior. In this research, the synthesis of the three-dimensional coral-like BaTiO3 (CBT) and its filling into a polyvinylidene fluoride (PVDF) matrix to obtain composites with excellent energy harvesting properties are reported. The CBT-based PENG has a 163 V voltage and a 16.7 µA current at a frequency of 4 Hz with 50 N compression. Simulations show that the high local stresses in the CBT coral branch structure are the main reason for the improved performance. The piezoelectric nanogenerator showed good durability at 5000 cycles, and 50 commercial light-emitting diodes were turned on. The piezoelectric nanogenerator generates a voltage of 4.68–12 V to capture the energy generated by the ball falling from different heights and a voltage of ≈0.55 V to capture the mechanical energy of the ball’s movement as it passes. This study suggests a CBT-based piezoelectric nanogenerator for potential use in piezoelectric sensors that has dramatically improved energy harvesting characteristics.

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Ani, Mohd Hanafi, Muhammad Zakhuan Zulkeflee, Akbar Kaderi, Agus Geter Edy Sutjipto, and Nurjannah Salim. "Multiwall Carbon Nanotubes Based Triboelectric Nanogenerators." Materials Science Forum 1056 (March 14, 2022): 33–38. http://dx.doi.org/10.4028/p-33bt35.

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Nanogenerators are a tiny device that can harvest small-scale ambient energies. Carbon nanotubes (CNTs) have been integrated into the device to boost the performance and increasing the efficiency of harvested electrical energy. Multiwall carbon nanotubes (MWCNT) have lower electrical properties compared to single wall carbon nanotubes (SWCNT). However, single wall carbon nanotube is difficult to grow in mass scale and subject to higher production cost. This paper aims to use MWCNT as an active material in triboelectric nanogenerator. The samples were prepared by spin coating of MWCNT on ITO glass at various concentrations. XRD result shows that MWCNT mainly present at crystal planes of (0 0 2), (1 0 0) and (0 0 4). The device has produced maximum current density of 165 μAm-2, and power density of 1,289 μWm-2. Apparently, the concentration of MWCNT in the solution to fabricate the device plays critical roles on the current output of the device. The application of multiwall carbon nanotube based triboelectric nanogenerator is promising for low cost self-powered nanogenerators.

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Niu, Li, Xuhong Miao, Gaoming Jiang, Ailan Wan, Yutian Li, and Qing Liu. "Biomechanical energy harvest based on textiles used in self-powering clothing." Journal of Engineered Fibers and Fabrics 15 (January 2020): 155892502096735. http://dx.doi.org/10.1177/1558925020967352.

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Advanced triboelectric nanogenerator techniques provide a massive opportunity for the development of new generation wearable electronics, which toward multi-function and self-powering. Textiles have been refreshed with the requirement of flexible electronics in recent decades. In particular, knitted-textiles have exhibited enormous and prominent potential possibilities for smart wearable devices, which are based on the merits of high stretchability, excellent elasticity, comfortability as well as compatibility. Combined knitted textiles with nanogenerator techniques will promote the knitted textile triboelectric nanogenerators (KNGs) emerging, endowing conventional textiles with biomechanical energy harvesting and sensing energy supplied abilities. However, the design of KNGs and the construction of KNGs are based on features of human motions symbolizing considerable challenges in both high efficiency and excellent comfort. Currently, this review is concerned with KNGs construction account of triboelectric effects referring to knitted-textile classifications, structural features, human motion energy traits, working mechanisms, and practical applications. Moreover, the remaining challenges of industrial production and the future prospects of knitted-textile triboelectric nanogenerators of harvesting biomechanical energy are presented.

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Liu, Huailan, Rui Zhang, Yufei Liu, and Cunxiang He. "Unveiling Evolutionary Path of Nanogenerator Technology: A Novel Method Based on Sentence-BERT." Nanomaterials 12, no. 12 (June 11, 2022): 2018. http://dx.doi.org/10.3390/nano12122018.

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In recent years, nanogenerator technology has developed rapidly with the rise of cloud computing, artificial intelligence, and other fields. Therefore, the quick identification of the evolutionary path of nanogenerator technology from a large amount of data attracts much attention. It is of great significance in grasping technical trends and analyzing technical areas of interest. However, there are some limitations in previous studies. On the one hand, previous research on technological evolution has generally utilized bibliometrics, patent analysis, and citations between patents and papers, ignoring the rich semantic information contained therein; on the other hand, its evolution analysis perspective is single, and it is difficult to obtain accurate results. Therefore, this paper proposes a new framework based on the methods of Sentence-BERT and phrase mining, using multi-source data, such as papers and patents, to unveil the evolutionary path of nanogenerator technology. Firstly, using text vectorization, clustering algorithms, and the phrase mining method, current technical themes of significant interest to researchers can be obtained. Next, this paper correlates the multi-source fusion themes through semantic similarity calculation and demonstrates the multi-dimensional technology evolutionary path by using the “theme river map”. Finally, this paper presents an evolution analysis from the perspective of frontier research and technology research, so as to discover the development focus of nanogenerators and predict the future application prospects of nanogenerator technology.

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Mainra, Jashan Kumar, Akshpreet Kaur, Gaurav Sapra, and Parul Gaur. "Simulation and Modelling of Triboelectric Nanogenerator for Self-powered Electronic Devices." IOP Conference Series: Materials Science and Engineering 1225, no. 1 (February 1, 2022): 012012. http://dx.doi.org/10.1088/1757-899x/1225/1/012012.

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Abstract Triboelectric Nanogenerators has revolutionised the area of energy harvesting and self-powered sensing. In recent years, variety of small scale applications of triboelectric nanogenerators have been explored extensively particularly in self powered electronics, wearable and implantable devices, self-powered biosensors, human motion monitoring, location evaluation, air quality control etc. This paper discusses simulation and modelling of contact separation mode based triboelectric nanogenerator. In this work, triboelectric nanogenerators are simulated in COMSOL to compare the voltage profile of three different triboelectric materials – Kapton, Teflon and RTV Silicone with respect to Aluminium. Also, the effect of thickness of triboelectric layer on voltage profile is studied to optimize the thickness of the films. The output voltage recorded is 75 V, 60 V and 59 V for RTV Silicone, Teflon and Kapton respectively. It was observed that with increase in thickness of triboelectric layer, output voltage first increases linearly and then starts decreasing. The future research is directed towards fabricating a robust device for realising self – powered electronic devices.

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Wu, Chuan, He Huang, Rui Li, and Chenxing Fan. "Research on the Potential of Spherical Triboelectric Nanogenerator for Collecting Vibration Energy and Measuring Vibration." Sensors 20, no. 4 (February 15, 2020): 1063. http://dx.doi.org/10.3390/s20041063.

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The traditional downhole drilling vibration measurement methods which use cable or battery as power supplies increase the drilling costs and reduce the drilling efficiency. This paper proposes a spherical triboelectric nanogenerator, which shows the potential to collect the downhole vibration energy and measure the vibration frequency in a self-powered model. The power generation tests show that the output signal amplitude of the spherical triboelectric nanogenerator increases as the vibration frequency increases, and it can reach a maximum output voltage of 70 V, a maximum current of 3.3 × 10−5 A, and a maximum power of 10.9 × 10−9 W at 8 Hz when a 10-ohm resistor is connected. Therefore, if the power generation is stored for a certain period of time when numbers of the spherical triboelectric nanogenerators are connected in parallel, it may provide intermittent power for the low-power downhole measurement instruments. In addition, the sensing tests show that the measurement range is 0 to 8 Hz, the test error is less than 2%, the applicable working environment temperature is below 100 degrees Celsius, and the installation distance between the spherical triboelectric nanogenerator and the vibration source should be less than the critical value of 150 cm because the output signal amplitude is inversely proportional to the distance.

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Minhas, Jabir Zamir, Md Al Mahadi Hasan, and Ya Yang. "Ferroelectric Materials Based Coupled Nanogenerators." Nanoenergy Advances 1, no. 2 (November 25, 2021): 131–80. http://dx.doi.org/10.3390/nanoenergyadv1020007.

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Innovations in nanogenerator technology foster pervading self-power devices for human use, environmental surveillance, energy transfiguration, intelligent energy storage systems, and wireless networks. Energy harvesting from ubiquitous ambient mechanical, thermal, and solar energies by nanogenerators is the hotspot of the modern electronics research era. Ferroelectric materials, which show spontaneous polarization, are reversible when exposed to the external electric field, and are responsive to external stimuli of strain, heat, and light are promising for modeling nanogenerators. This review demonstrates ferroelectric material-based nanogenerators, practicing the discrete and coupled pyroelectric, piezoelectric, triboelectric, and ferroelectric photovoltaic effects. Their working mechanisms and way of optimizing their performances, exercising the conjunction of effects in a standalone device, and multi-effects coupled nanogenerators are greatly versatile and reliable and encourage resolution in the energy crisis. Additionally, the expectancy of productive lines of future ensuing and propitious application domains are listed.

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Phan, Hai, Nguyen Hoa Phan, Anh Tam Ho, Huu Duc Nguyen, and Duc Thang Pham. "Investigation and fabrication triboelectric nanogenerator using commercial Polytetrafluoroethylene and Aluminum." Ministry of Science and Technology, Vietnam 64, no. 3 (March 25, 2022): 32–36. http://dx.doi.org/10.31276/vjst.64(3).32-36.

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Triboelectric nanogenerator (TENG) is an energy technology that can convert mechanical energy into electricity based on the conjunction of triboelectric friction and electrostatic induction. TENG possesses a high potential as an alternative artificial energy source to develop the integrated power source device, active sensor, or massive scale power source. In this research, the vertical contact triboelectric nanogenerators using commercial grade Polytetrafluoroethylene (PTFE) and Aluminum were successfully fabricated. It performs the output voltage and current of 145 V and 8.5 μA, respectively. Moreover, the maximum power of 510 μW was observed at the external contact force of 11 N.

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Garcia, Cristobal, Irina Trendafilova, Roberto Guzman de Villoria, and Jose Sánchez del Río. "Triboelectric nanogenerator as self-powered impact sensor." MATEC Web of Conferences 148 (2018): 14005. http://dx.doi.org/10.1051/matecconf/201814814005.

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In recent years, triboelectric nanogenerators (TENGs) are used to harvest mechanical energy from ambient environment. These devices convert ambient energies (e.g. vibrations, breathing-driven, impacts or human body motions) into electricity based on the triboelectric effect. Furthermore, some TENGs can be successfully employed as self-power active sensors because the electric response from the TENG is proportional to the magnitude of the mechanical motion. This study report on the design and development of a novel triboelectric nanogenerator, and its potential application as self-powered impact sensor. To prepare the TENG device, membranes of polyvinylidene fluoride (PVDF) and polyvinylpyrrolidone (PVP) nanofibers are sandwiched between copper electrode films and wrapped on PET films. The TENG works based on the triboelectric interaction between the membranes of nanofibers. After the preparation, the TENGs are subjected to several impacts by the drop-ball impact test. The purpose of the experiment is to analyse if the electric response of TENG is dependent on the energy of the impact. The results of the experiment are presented and discussed. The main contributions of this work are the preparation of a novel nanogenerator (TENG) based on the triboelectric interaction between polyvinylidene fluoride and polyvinylpyrrolidone sub-micron polymer fibers and the investigation of its potential use as a self-powered impact sensor.

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Faruk Ünsal, Ömer, and Ayşe Çelik Bedeloğlu. "Recent Trends in Flexible Nanogenerators: A review." Material Science Research India 15, no. 2 (July 30, 2018): 114–30. http://dx.doi.org/10.13005/msri/150202.

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Harvesting energy from environment presents a remarkable practical way to supply energy for smart self-powered advanced devices such as remote sensing devices, wireless networks, biomedical and wearable devices. A nanogenerator converting mechanical/thermal energy into electricity is an interesting emerging technology since it produces energy from environment. The nanogenerators have different energy production approaches about which many significant studies are going on. In recent years, technological and scientific researches have been focused on flexible devices to increase the application fields. Besides, increasing work on nanogenerators showed that providing flexibility to these devices will contribute to producing more ergonomic smart systems. The devices, which are capable to be used in textile, medical, mechanical etc. industries are also designed especially in academic studies. In this review, recent trends in the field of flexible nanogenerators were presented by demonstrating new potential applications in different areas.

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Zhang, Can Can, Jian Guo Sheng, and Ping Zeng. "Study of the Manufacture about Nanogenerators and their Performance." Advanced Materials Research 465 (February 2012): 86–90. http://dx.doi.org/10.4028/www.scientific.net/amr.465.86.

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With the development of science and technology, the smaller sizes generator, the more attention by people. The main purpose of this article is to manufacture three-phase nanogenerator and piezoelectric nanogenerator under vibration, and their working principle are introduced and their performances are studied. The results show that, using the present nanomaterials, three-phase nanogenerator and piezoelectric nanogenerator can be prepared. In ambient vibration condition, piezoelectric materials produce larger rated current and voltage. However, copper laps cutting magnetic line of force produce less rated current and voltage. So the piezoelectric nanogenerator can be separately used to supply power. It may produce higher voltage, current and power if three-phase nanogenerator and piezoelectric nanogenerator in series-parallel connection, and there is commercial value.

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Chen, Lijun, Tairan Wang, Yunchu Shen, Fumei Wang, and Chaoyu Chen. "Stretchable Woven Fabric-Based Triboelectric Nanogenerator for Energy Harvesting and Self-Powered Sensing." Nanomaterials 13, no. 5 (February 25, 2023): 863. http://dx.doi.org/10.3390/nano13050863.

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With the triboelectric nanogenerator developing in recent years, it has gradually become a promising alternative to fossil energy and batteries. Its rapid advancements also promote the combination of triboelectric nanogenerators and textiles. However, the limited stretchability of fabric-based triboelectric nanogenerators hindered their development in wearable electronic devices. Here, in combination with the polyamide (PA) conductive yarn, polyester multifilament, and polyurethane yarn, a highly stretchable woven fabric-based triboelectric nanogenerator (SWF-TENG) with the three elementary weaves is developed. Different from the normal woven fabric without elasticity, the loom tension of the elastic warp yarn is much larger than non-elastic warp yarn in the weaving process, which results in the high elasticity of the woven fabric coming from the loom. Based on the unique and creative woven method, SWF-TENGs are qualified with excellent stretchability (up to 300%), flexibility, comfortability, and excellent mechanical stability. It also exhibits good sensitivity and fast responsibility to the external tensile strain, which can be used as a bend–stretch sensor to detect and identify human gait. Its collected power under pressure mode is capable of lighting up 34 light-emitting diodes (LEDs) by only hand-tapping the fabric. SWF-TENG can be mass-manufactured by using the weaving machine, which decreases fabricating costs and accelerates industrialization. Based on these merits, this work provides a promising direction toward stretchable fabric-based TENGs with wide applications in wearable electronics, including energy harvesting and self-powered sensing.

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Lin, Yuan, Youchao Qi, Jiaqi Wang, Guoxu Liu, Zhaozheng Wang, Junqing Zhao, Yi Lv, et al. "Self-Powered and Autonomous Vibrational Wake-Up System Based on Triboelectric Nanogenerators and MEMS Switch." Sensors 22, no. 10 (May 14, 2022): 3752. http://dx.doi.org/10.3390/s22103752.

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With the extensive application of wireless sensing nodes, the demand for sustainable energy in unattended environments is increasing. Here, we report a self-powered and autonomous vibrational wake-up system (SAVWS) based on triboelectric nanogenerators and micro-electromechanical system (MEMS) switches. The energy triboelectric nanogenerator (E-TENG) harvests vibration energy to power the wireless transmitter through a MEMS switch. The signal triboelectric nanogenerator (S-TENG) controls the state of the MEMS switch as a self-powered accelerometer and shows good linearity in the acceleration range of 1–4.5 m/s2 at 30 Hz with a sensitivity of about 14.6 V/(m/s2). When the acceleration increases, the S-TENG turns on the MEMS switch, and the wireless transmitter transmits an alarm signal with the energy from E-TENG, using only 0.64 mJ. Using TENGs simultaneously as an energy source and a sensor, the SAVWS provides a self-powered vibration monitoring solution for unattended environments and shows extensive applications and great promise in smart factories, autonomous driving, and the Internet of Things.

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Wang, Chun Jie, Fan Meng, Qiang Fu, Chen Hui Fan, and Lin Cui. "Research on Wave Energy Harvesting Technology of Annular Triboelectric Nanogenerator Based on Multi-Electrode Structure." Micromachines 13, no. 10 (September 27, 2022): 1619. http://dx.doi.org/10.3390/mi13101619.

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Triboelectric nanogenerators can convert wave energy into the electrical energy required by ocean sensors, but the problem of the low electrical output performance of triboelectric nanogenerators has always been a concern. In this paper, an annular triboelectric nanogenerator (A-TENG) composed of an annular outer shell and an inner ball is proposed to improve the electrical output performance of the triboelectric nanogenerator by optimizing the structural parameters and wave parameters. Using the control variables, the effects of structural parameters (structure size, number of electrodes, electrode spacing, inner ball diameter, and number of inner balls) and wave parameters (wave frequency and wave amplitude) on the electrical output performance of the A-TENG were studied by combining COMSOL simulation and experimental research. The experimental results show that increasing the diameter and number of inner spheres can improve the open-circuit voltage between electrodes; the multi-electrode structure can improve the electron transfer rate and efficiently collect wave energy in all directions; and within the range of fixed sea conditions, there is an optimal annular size, which has the advantages of good electrical output performance and small size. The electrical output performance of the A-TENG can be greatly improved by optimizing the structural parameters. There are optimal wave parameters, such that the A-TENG can maximize the ocean wave energy conversion. This low-cost, long-life, efficient, and reliable energy harvesting system is ideal for powering ocean sensors.

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Han, Sang A., Ju‐Hyuck Lee, Wanchul Seung, Jaewoo Lee, Sang‐Woo Kim, and Jung Ho Kim. "2D Nanogenerators: Patchable and Implantable 2D Nanogenerator (Small 9/2021)." Small 17, no. 9 (March 2021): 2170039. http://dx.doi.org/10.1002/smll.202170039.

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Pabba, Durga Prasad, Mani Satthiyaraju, Ananthakumar Ramasdoss, Pandurengan Sakthivel, Natarajan Chidhambaram, Shanmugasundar Dhanabalan, Carolina Venegas Abarzúa, et al. "MXene-Based Nanocomposites for Piezoelectric and Triboelectric Energy Harvesting Applications." Micromachines 14, no. 6 (June 20, 2023): 1273. http://dx.doi.org/10.3390/mi14061273.

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Due to its superior advantages in terms of electronegativity, metallic conductivity, mechanical flexibility, customizable surface chemistry, etc., 2D MXenes for nanogenerators have demonstrated significant progress. In order to push scientific design strategies for the practical application of nanogenerators from the viewpoints of the basic aspect and recent advancements, this systematic review covers the most recent developments of MXenes for nanogenerators in its first section. In the second section, the importance of renewable energy and an introduction to nanogenerators, major classifications, and their working principles are discussed. At the end of this section, various materials used for energy harvesting and frequent combos of MXene with other active materials are described in detail together with the essential framework of nanogenerators. In the third, fourth, and fifth sections, the materials used for nanogenerators, MXene synthesis along with its properties, and MXene nanocomposites with polymeric materials are discussed in detail with the recent progress and challenges for their use in nanogenerator applications. In the sixth section, a thorough discussion of the design strategies and internal improvement mechanisms of MXenes and the composite materials for nanogenerators with 3D printing technologies are presented. Finally, we summarize the key points discussed throughout this review and discuss some thoughts on potential approaches for nanocomposite materials based on MXenes that could be used in nanogenerators for better performance.

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Li, Zhongjie, Chao Yang, Yan Peng, Fan Shen, and Xuzhang Peng. "Comparison of Power Density of Triboelectric Generators via Frequency-up-Conversion Method." Journal of Physics: Conference Series 2474, no. 1 (April 1, 2023): 012036. http://dx.doi.org/10.1088/1742-6596/2474/1/012036.

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Abstract In this paper, we experimentally compared the instantaneous volume power density and the average volume power density of the triboelectric nanogenerator (TENG) with and without a frequency-up conversion mechanism. We first proposed a double-cantilever structure TENG (DC-TENG). A conventional contact-separation TENG was also constructed as the control case for electric output comparison. A few experiments were then conducted to investigate how the cantilever’s high-frequency vibrations influence the output voltage, instantaneous power, etc., before those of the triboelectric nanogenerator without frequency conversion. The results indicate that the double-cantilever system effectively converts low-frequency linear impact into high-frequency vibration. As of the best contrast, the DC-TENG yields a maximal open-circuit voltage of 141.5 V, an instantaneous power of 0.76 mW, and an average power of 0.77 μW excited by a linear impact, which frequency is 0.6 Hz and amplitude is 8 mm. The peak and the average power density of generators with the frequency convert device are enhanced by 34 times and 13 times as high as those of the original case, respectively. This finding proves that the cantilever integrated with triboelectric nanogenerators is an effective configuration with evident performance improvement.

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Sheng, Jian Guo, Can Can Zhang, and Ping Zeng. "Study of the Manufacture about Single, Three-Phase Nanogenerator under Micro Vibration and their Performance." Applied Mechanics and Materials 105-107 (September 2011): 2129–32. http://dx.doi.org/10.4028/www.scientific.net/amm.105-107.2129.

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With the development of science and technology, the smaller generator was got more and more attention for people. In this article, through manufacture of single-phase and three-phase micro vibrations nanogenerator, the working principle of single and three-phase micro vibrations nanogenerator are introduced, and their performances are studied. Results show that, the pulse micro vibrations energy can be changed into rotating kinetic energy, then it can cause the rotation of the coil which produces electrical energy by cutting magnetic line. Energy conversion rate is exceed 80% for nanogenerator. Now, we can produce single, three-phase micro vibrations nanogenerator using the existing nanometer material. The power of three-phase micro vibrations nanogenerator is higher about 50% than the single one, it’s power factor is also slightly higher than that of single-phase. It indicates that three-phase micro vibration nanogenerator is better than single one.

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Lee, Ju-Hyuck, Keun Young Lee, Manoj Kumar Gupta, Tae Yun Kim, Dae-Yeong Lee, Junho Oh, Changkook Ryu, et al. "Nanogenerators: Highly Stretchable Piezoelectric-Pyroelectric Hybrid Nanogenerator (Adv. Mater. 5/2014)." Advanced Materials 26, no. 5 (February 2014): 820. http://dx.doi.org/10.1002/adma.201470032.

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Lee, Keun Young, Jinsung Chun, Ju-Hyuck Lee, Kyeong Nam Kim, Na-Ri Kang, Ju-Young Kim, Myung Hwa Kim, et al. "Nanogenerators: Hydrophobic Sponge Structure-Based Triboelectric Nanogenerator (Adv. Mater. 29/2014)." Advanced Materials 26, no. 29 (August 2014): 4909. http://dx.doi.org/10.1002/adma.201470195.

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Bhamre, Sumit, Sainath Mali, and Chittaranjan Mane. "Optimization of electric vehicle based on triboelectric nanogenerator." E3S Web of Conferences 170 (2020): 01027. http://dx.doi.org/10.1051/e3sconf/202017001027.

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Triboelectric Nanogenerator is a newly invented energy harvesting technology which converts external mechanical energy into electricity based on universally accepted triboelectric principle. In this research paper we have developed an easy way to produce Triboelectric Nanogenerator by using easily available material such as Kapton, Polyethylene Terephthalate (PET Plastic Sheet) and Aluminium Foil unlike more complex material such as Polydimethylsiloxane (PDMS) used by the core researchers. We have also designed and developed a sheet of Triboelectric Nanogenerator and implemented it on electric vehicle and observed the scavenging of friction energy from rolling tyres and also calculated that how much energy Triboelectric Nanogenerator can produce. This successful demonstration of Triboelectric Nanogenerator on wheel and its theoretical calculations provides a promising solution to scavenging the wasted energy of the vehicle and use this wasted energy to increase the battery capacity and range of electric vehicle.

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Widakdo, Januar, Wen-Ching Lei, Anawati Anawati, Subrahmanya Thagare Manjunatha, Hannah Faye M. Austria, Owen Setiawan, Tsung-Han Huang, Yu-Hsuan Chiao, Wei-Song Hung, and Ming-Hua Ho. "Effects of Co-Solvent-Induced Self-Assembled Graphene-PVDF Composite Film on Piezoelectric Application." Polymers 15, no. 1 (December 28, 2022): 137. http://dx.doi.org/10.3390/polym15010137.

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A persistent purpose for self-powered and wearable electronic devices is the fabrication of graphene-PVDF piezoelectric nanogenerators with various co-solvents that could provide enhanced levels of durability and stability while generating a higher output. This study resulted in a piezoelectric nanogenerator based on a composite film composed of graphene, and poly (vinylidene fluoride) (PVDF) as a flexible polymer matrix that delivers high performance, flexibility, and cost-effectiveness. By adjusting the co-solvent in the solution, a graphene-PVDF piezoelectric nanogenerator can be created (acetone, THF, water, and EtOH). The solution becomes less viscous and is more diluted the more significant the concentration of co-solvents, such as acetone, THF, and EtOH. Additionally, when the density is low, the thickness will be thinner. The final film thickness for all is ~25 µm. Furthermore, the- crystal phase becomes more apparent when graphene is added and combined with the four co-solvents. Based on the XRD results, the peak changes to the right, which can be inferred to be more dominant with the β-phase. THF is the co-solvent with the highest piezoelectric output among other co-solvents. Most of the output voltages produced are 0.071 V and are more significant than the rest.

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Wu, Jyh Ming, and Chi Chun Kao. "Self-powered pendulum and micro-force active sensors based on a ZnS nanogenerator." RSC Adv. 4, no. 27 (2014): 13882–87. http://dx.doi.org/10.1039/c3ra47435f.

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A pendulum and micro-force active sensors have been first made from zinc sulfur nanowires based nanogenerator. The ZnS nanogenerator can be self-powered to trace a simple harmonic motion of a pendulum that released from different angle. A various momentums from 0.077 N s to 0.177 N s were able to detect owing to the output voltage and current of the ZnS nanogenerator were proportional to the momentum.

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Jian, Gang, Ning Yang, Shangtao Zhu, Qingzhen Meng, and Chun Ouyang. "A Mousepad Triboelectric-Piezoelectric Hybrid Nanogenerator (TPHNG) for Self-Powered Computer User Behavior Monitoring Sensors and Biomechanical Energy Harvesting." Polymers 15, no. 11 (May 26, 2023): 2462. http://dx.doi.org/10.3390/polym15112462.

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Hybrid nanogenerators based on the principle of surface charging of functional films are significant in self-powering sensing and energy conversion devices due to their multiple functions and high conversion efficiency, although applications remain limited due to a lack of suitable materials and structures. Here, we investigate a triboelectric-piezoelectric hybrid nanogenerator (TPHNG) in the form of a mousepad for computer user behavior monitoring and energy harvesting. Triboelectric and piezoelectric nanogenerators with different functional films and structures work independently to detect sliding and pressing movements, and the profitable coupling between the two nanogenerators leads to enhanced device outputs/sensitivity. Different mouse operations such as clicking, scrolling, taking-up/putting-down, sliding, moving rate, and pathing can be detected by the device via distinguishable patterns of voltage ranging from 0.6 to 36 V. Based on operation recognition, human behavior monitoring is realized, with monitoring of tasks such as browsing a document and playing a computer game being successfully demonstrated. Energy harvesting from mouse sliding, patting, and bending of the device is realized with output voltages up to 37 V and power up to 48 μW while exhibiting good durability up to 20,000 cycles. This work presents a TPHNG utilizing surface charging for self-powered human behavior sensing and biomechanical energy harvesting.

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Heo, Deokjae, Jihoon Chung, Gunsub Shin, Minhyeong Seok, Chanhee Lee, and Sangmin Lee. "Yo-Yo Inspired Triboelectric Nanogenerator." Energies 14, no. 7 (March 24, 2021): 1798. http://dx.doi.org/10.3390/en14071798.

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Recently, as the demand for sustainable and renewable energy to power a large number of small electronics and sensors has increased, various mechanical energy harvesters such as electromagnetic, piezoelectric, and triboelectric generators have been highlighted because they have no environmental constraints to generate electricity and function as sustainable power sources. Among these generators, triboelectric nanogenerators (TENGs), which produce electrical energy via triboelectrification and electrostatic induction, are a promising energy harvesting technology that can utilize existing materials or the structure of existing commercial products. Considering the vast number of independent portable electronics used today, the development of hand-driven TENGs is important. There is great demand for TENG considering both commercial product-inspired designs, which are the merit of TENG itself, and the hand-driven type. However, relevant studies are still lacking, and therefore further studies in these areas are required. In this study, we developed a novel triboelectric nanogenerator (Y-TENG) inspired by the Yo-Yo that can produce a sustainable electric output by hand motion input. One generator of Y-TENG produced a maximum VOC of 10 V and an ICC of 0.7 μA. Peak/root mean square (RMS) voltage output-based quantitative analysis for the optimized number of blades and dielectric material was performed. The proposed Y-TENG was able to continuously light up three light-emitting diodes (LEDs) while the Y-TENG moved up and down.

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Kim, Daewon, Ik Kyeong Jin, and Yang-Kyu Choi. "Ferromagnetic nanoparticle-embedded hybrid nanogenerator for harvesting omnidirectional vibration energy." Nanoscale 10, no. 26 (2018): 12276–83. http://dx.doi.org/10.1039/c8nr02039f.

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A ferromagnetic nanoparticle-embedded hybrid nanogenerator (FHNG) which combines triboelectric nanogenerator (TENG) and electromagnetic generator (EMG) was is proposed. Through a simple treatment, high-triboelectric monolayers of nanoscale thicknesses are formed.

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Ippili, Swathi, Venkatraju Jella, Alphi Maria Thomas, and Soon-Gil Yoon. "The Recent Progress on Halide Perovskite-Based Self-Powered Sensors Enabled by Piezoelectric and Triboelectric Effects." Nanoenergy Advances 1, no. 1 (July 23, 2021): 3–31. http://dx.doi.org/10.3390/nanoenergyadv1010002.

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Sensors have recently gathered significant attention owing to the rapid growth of the Internet of Things (IoT) technology for the real-time monitoring of surroundings and human activities. Particularly, recently discovered nanogenerator-based self-powered sensors are potential candidates to overcome the existing problems of the conventional sensors, including regular monitoring, lifetime of a power unit, and portability. Halide perovskites (HPs), with an excellent photoactive nature, dielectric, piezoelectric, ferroelectric, and pyroelectric properties, have been potential candidates for obtaining flexible and self-powered sensors including light, pressure, and temperature. Additionally, the photo-stimulated dielectric, piezoelectric, and triboelectric properties of HPs make them efficient entrants for developing bimodal and multimode sensors to sense multi-physical signals individually or simultaneously. Therefore, we provide an update on the recent progress in self-powered sensors based on pyroelectric, piezoelectric, and triboelectric effects of HP materials. First, the detailed working mechanism of HP-based piezoelectric, triboelectric, and pyroelectric nanogenerators—operated as self-powered sensors—is presented. Additionally, the effect of light on piezoelectric and triboelectric effects of HPs, which is indispensable in multimode sensor application, is also systematically discussed. Furthermore, the recent advances in nanogenerator-based self-powered bimodal sensors comprising HPs as light-active materials are summarized. Finally, the perspectives and continuing challenges of HP-based self-powered sensors are presented with some opportunities for future development in self-powered multimode sensors.

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Yue, Xule, Yi Xi, Chenguo Hu, Xianming He, Shuge Dai, Lu Cheng, and Guo Wang. "Enhanced output-power of nanogenerator by modifying PDMS film with lateral ZnO nanotubes and Ag nanowires." RSC Advances 5, no. 41 (2015): 32566–71. http://dx.doi.org/10.1039/c5ra02098k.

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Design of hybrid nanogenerator that can simultaneously light up 99 commercial blue LEDs connected in series. Additionally, by placing a hand on the nanogenerator the maximum peak current could reach 115 μA.

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Wang, Hao, Chuanqing Zhu, Weichen Wang, Ruijiang Xu, Pengfei Chen, Taili Du, Tingxi Xue, Zhaoyang Wang, and Minyi Xu. "A Stackable Triboelectric Nanogenerator for Wave-Driven Marine Buoys." Nanomaterials 12, no. 4 (February 10, 2022): 594. http://dx.doi.org/10.3390/nano12040594.

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Marine distributed devices are essential infrastructure for exploring and utilizing the ocean. As the most common carrier of these devices, floating and submerged buoys are subject to a bottleneck of power supply. Recent progress in nanogenerators could convert the high-entropy marine kinetic energy (e.g., wave) robustly, which may form an in-situ power solution to marine distributed devices. This study is devoted to develop a stackable triboelectric nanogenerator (S-TENG), while each layer of it is made into multiple channels carrying PTFE balls in between Aluminum electrodes. In the experiments based on forced motion, the peak power density of the S-TENG reaches 49 W/m3, about 29% promotion from our previous benchmark. The S-TENG has also become less vulnerable to directional variation of the excitation, making its integration on various platforms more flexible in real conditions. In practice, the S-TENG has demonstrated its capability of powering LEDs as well as various sensors measuring salinity, temperature and acidity, which means the S-TENG could self-power many compact marine buoys.

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Prando, Giacomo. "A steam nanogenerator." Nature Nanotechnology 12, no. 6 (June 2017): 506. http://dx.doi.org/10.1038/nnano.2017.117.

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Sarkar, Lisa, Mudigunda V. Sushma, Bhavani Prasad Yalagala, Aravind Kumar Rengan, Shiv Govind Singh, and Siva Rama Krishna Vanjari. "ZnO nanoparticles embedded silk fibroin—a piezoelectric composite for nanogenerator applications." Nanotechnology 33, no. 26 (April 8, 2022): 265403. http://dx.doi.org/10.1088/1361-6528/ac5d9f.

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Abstract This paper demonstrates a flexible nanogenerator (NG) using Silk-Zinc Oxide (ZnO) composite by exploiting the inherent piezoelectric properties of silk and ZnO. A direct precipitation method was employed to synthesize Zinc Oxide nanoparticles (NPs). Silk-ZnO composite film was then prepared by spin-coating the homogenous silk-ZnO solution. The composition and morphology of silk-ZnO composite were analyzed using various standard characterization procedures. The biocompatibility study of the composite film was also performed through cell viability testing. The utility of as prepared composites was demonstrated through the fabrication of piezoelectric nanogenerator. This hybrid nanogenerator was capable to generate a maximum open circuit voltage of 25 V (peak to peak value) in the bending state for a specific ZnO concentration. The output response of the nanogenerator exhibited a good correlation with the bending angle of the device. A peak outputpower density of 6.67 mW cm−3 was achieved from the nanogenerator. The fabricated prototype is efficient to light-up commercial red LEDs and to harvest energy from human body movement. The piezoelectric coefficient (d 33) of silk-ZnO composite film was also experimentally figured out.

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Journal articles on the topic 'Nanogenerator'

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