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Journal articles on the topic 'Air stability, flexible biosourced substrate'

Author: Grafiati

Published: 12 April 2023

Last updated: 31 July 2025

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1

Bogy, D. B., and F. E. Talke. "Mechanics-Related Problems of Magnetic Recording Technology and Ink-Jet Printing." Applied Mechanics Reviews 39, no. 11 (1986): 1665–77. http://dx.doi.org/10.1115/1.3149508.

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In this paper, mechanical aspects of magnetic recording technology and nonimpact printing are discussed. In the recording area, theoretical and experimental aspects of air bearing theory, head/disk dynamics, and head/disk tribology are studied. Flutter of rotating disks is investigated, the flow field between rotating disks is described, and nonrepeatable run-out of disk file spindles is studied. Furthermore, the head/disk interface for flexible media is discussed and dimensional stability of flexible substrate is examined. In the printing area, experimental and theoretical investigations usin

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Xu, Xiaomin, Kenjiro Fukuda, Akchheta Karki, et al. "Thermally stable, highly efficient, ultraflexible organic photovoltaics." Proceedings of the National Academy of Sciences 115, no. 18 (2018): 4589–94. http://dx.doi.org/10.1073/pnas.1801187115.

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Flexible photovoltaics with extreme mechanical compliance present appealing possibilities to power Internet of Things (IoT) sensors and wearable electronic devices. Although improvement in thermal stability is essential, simultaneous achievement of high power conversion efficiency (PCE) and thermal stability in flexible organic photovoltaics (OPVs) remains challenging due to the difficulties in maintaining an optimal microstructure of the active layer under thermal stress. The insufficient thermal capability of a plastic substrate and the environmental influences cannot be fully expelled by ul

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Zhang, Tianwei, Xin Meng, Lihong Kang, Qingtao Ge, and Jie Zhang. "Ink Fluidic Behaviors during R2R Slot Die Coating on Quality Thin Film Formation." Journal of Physics: Conference Series 2610, no. 1 (2023): 012026. http://dx.doi.org/10.1088/1742-6596/2610/1/012026.

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Abstract High throughput slot die coating is a desired fabrication method for flexible display, solar cell, Li-ion battery pack, intelligent package and wearable electronics. In this study, the stability of the thin film formation by slot die coating is investigated through theoretical, experimental and numerical studies with the combined effects of the fluid and substrate surface characteristics. The theoretical model based on the viscous capillary theory reveals fluid upstream and downstream distribution patterns and associated parameters that descript the coating layer stability. A 3D model

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Konagaya, Ryota, and Masayuki Takashiri. "Dual-Type Flexible-Film Thermoelectric Generators Using All-Carbon Nanotube Films." Coatings 13, no. 1 (2023): 209. http://dx.doi.org/10.3390/coatings13010209.

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The long-term stability of n-type single-walled carbon nanotubes (SWCNTs) in air makes all-carbon thermoelectric generators (TEGs) viable. To increase the performance of TEGs, we developed a dual-type flexible-film thermoelectric generator (DFTEG). The vacuum filtering was used to form p- and n-type SWCNT films from ethanol-based dispersion and water-based solutions with cationic surfactant, respectively. DFTEGs were fabricated as follows: strip-shaped p- and n-type SWCNT films were attached on the top and back sides of a polyimide substrate, respectively, and were connected alternately in ser

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Yao, Jinyuan, Qi Zhang, Haodong Zhang, et al. "In Situ Sputtering Silver Induction Electrode for Stable and Stretchable Triboelectric Nanogenerators." Micromachines 12, no. 10 (2021): 1267. http://dx.doi.org/10.3390/mi12101267.

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Triboelectric nanogenerators (TENG) can convert mechanical energy into electricity and exhibit unique advantages in the field of low-frequency and discrete energy harvesting. However, the interfacial state and stability between the triboelectric layer and electrode layer influence the output and applications of TENG. Herein, an in situ sputtering Ag process for fabricating induction electrodes is proposed to match with TENG. The sputtering Ag process is optimized by a variety of parameters, such as sputtering power, single-cycle time, number of cycles, cycle interval, and vacuum degree. In add

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Sedlak, Petr, Petr Kubersky, Pavel Skarvada, et al. "Current Fluctuation Measurements of Amperometric Gas Sensors Constructed with Three Different Technology Procedures." Metrology and Measurement Systems 23, no. 4 (2016): 531–43. http://dx.doi.org/10.1515/mms-2016-0042.

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Abstract Electrochemical amperometric gas sensors represent a well-established and versatile type of devices with unique features: good sensitivity and stability, short response/recovery times, and low power consumption. These sensors operate at room temperature, and therefore have been applied in monitoring air pollutants and detection of toxic and hazardous gases in a number of areas. Some drawbacks of classical electrochemical sensors are overcome by the solid polymer electrolyte (SPE) based on ionic liquids. This work presents evaluation of an SPE-based amperometric sensor from the point o

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Deng, Rui, Fuze Shangguan, Zhixuan Xia, Shuoyi Liang, and Kuilong Wang. "Innovative Measurement Techniques and Applications of Aqueous Graphene-Based Conductive Paint." Highlights in Science, Engineering and Technology 99 (June 18, 2024): 345–53. http://dx.doi.org/10.54097/fqm3nm38.

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Conductive paint, as a novel method to advance electronic product manufacturing technology in the coming decades, is gradually becoming a crucial element in inkjet printing and sensing and monitoring fields. In this study, we successfully prepared water-based conductive paint with nanographene as the base material through a simple solution mixing and dispersion-solidification process. Moreover, the prepared conductive paint can quickly solidify in the air and maintain its conductivity stability through multiple uses and measurements. We employed an improved Van der Pauw method in this research

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Tzaneva, Boriana, Valentin Mateev, Bozhidar Stefanov, Mariya Aleksandrova, and Ivo Iliev. "Electrochemical Investigation of PEDOT:PSS/Graphene Aging in Artificial Sweat." Polymers 16, no. 12 (2024): 1706. http://dx.doi.org/10.3390/polym16121706.

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Herein, we investigate the potential application of a composite consisting of PEDOT:PSS/Graphene, deposited via spray coating on a flexible substrate, as an autonomous conducting film for applications in wearable biosensor devices. The stability of PEDOT:PSS/Graphene is assessed through electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and linear polarization (LP) during exposure to an artificial sweat electrolyte, while scanning electron microscopy (SEM) was employed to investigate the morphological changes in the layer following these. The results indicate that the layers

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Ciotti, Federico, Andrea Cimolato, Giacomo Valle, and Stanisa Raspopovic. "Design of an adaptable intrafascicular electrode (AIR) for selective nerve stimulation by model-based optimization." PLOS Computational Biology 19, no. 5 (2023): e1011184. http://dx.doi.org/10.1371/journal.pcbi.1011184.

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Peripheral nerve stimulation is being investigated as a therapeutic tool in several clinical scenarios. However, the adopted devices have restricted ability to obtain desired outcomes with tolerable off-target effects. Recent promising solutions are not yet employed in clinical practice due to complex required surgeries, lack of long-term stability, and implant invasiveness. Here, we aimed to design a neural interface to address these issues, specifically dimensioned for pudendal and sacral nerves to potentially target sexual, bladder, or bowel dysfunctions. We designed the adaptable intrafasc

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Ourabi, May, and Benoit Lessard. "Polymer Sorting of Single-Walled Carbon Nanotubes and Implications for Thin-Film Transistor Fabrication." ECS Meeting Abstracts MA2025-01, no. 12 (2025): 980. https://doi.org/10.1149/ma2025-0112980mtgabs.

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Thin-film transistors (TFTs) are electronic switches and current amplifiers which, through large-scale printing techniques, enable emerging applications such as flexible electronics, sensors, and smart packaging. While polymer-wrapped semiconducting single-walled carbon nanotubes (SWNTs) offer promising mechanical and electrical properties, commercialization of such devices has been hindered as more work is needed to understand the impact of the polymer on device fabrication and performance. Our group fabricated ambipolar TFTs in ambient conditions using highly pure semiconducting SWNTs disper

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Ourry, Laurence, Delphine Toulemon, Souad Ammar, and Fayna Mammeri. "Methods for preparing polymer-decorated single exchange-biased magnetic nanoparticles for application in flexible polymer-based films." Beilstein Journal of Nanotechnology 8 (February 9, 2017): 408–17. http://dx.doi.org/10.3762/bjnano.8.43.

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Background: Magnetic nanoparticles (NPs) must not only be well-defined in composition, shape and size to exhibit the desired properties (e.g., exchange-bias for thermal stability of the magnetization) but also judiciously functionalized to ensure their stability in air and their compatibility with a polymer matrix, in order to avoid aggregation which may seriously affect their physical properties. Dipolar interactions between NPs too close to each other favour a collective magnetic glass state with lower magnetization and coercivity because of inhomogeneous and frustrated macrospin cluster fre

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Wu, Guodong, Haishun Du, Doohee Lee, et al. "Wearable Conductive Polymer Matrix Composites for Breath Monitoring with Ammonia Detection." ECS Meeting Abstracts MA2022-02, no. 62 (2022): 2284. http://dx.doi.org/10.1149/ma2022-02622284mtgabs.

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Conductive polymers, such as polyaniline (PANI), Polythiophene (PTh), polypyrrole (PPy), etc., are widely used for gas sensors due to their excellent electrical conductivity and low cost to manufacture [1]. In particular, PANI has attracted more attention due to its ease of synthesis, high environmental stability, and high reactivity with ammonia gas. In addition, the selection of acid-base dopant during the preparation process of polyaniline can adjust carrier concentrations for the change in electrical conduction or resistance to improve sensing properties. There have been many reports on th

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Fukuda, Kenjiro, and Takao Someya. "(Invited) Performance Improvement and Potential Applications of Ultrathin Organic Solar Cells." ECS Meeting Abstracts MA2023-02, no. 44 (2023): 2179. http://dx.doi.org/10.1149/ma2023-02442179mtgabs.

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Flexible and thin photovoltaics can supply a variety of applications such as power sources for wearable electronics and soft robots. We reduce the total thickness of such organic photovoltaics down to several μm, which enables extreme bendability and lightweight properties. The important parameters include high efficiency and stability in ambient air conditions. Here we show our recent progress with ultra-thin organic solar cells and potential applications for wearable electronics and soft robots. The current best power conversion efficiency (PCE) for ultrathin organic solar cells is 15.8% rep

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Islam, Md Mobaidul, Md Mehedi Hasan, and Jin Jang. "High-Performance Flexible Hf_0.5Zr_0.5O₂ Ferroelectric Thin-Film Transistors on PI Substrate By Solution Process." ECS Meeting Abstracts MA2022-02, no. 15 (2022): 812. http://dx.doi.org/10.1149/ma2022-0215812mtgabs.

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Flexible electronics such as wearable electronics, electronic skins, implantable devices, and flexible displays are started influencing our lives in various aspects due to their lightweight, portability, and human-friendly interface. In these applications, nonvolatile memory (NVM) and synaptic devices are essential elements to implement high speed integrated circuits and neuromorphic computing at low power consumption. Perovskite-based ferroelectric (FE) materials such as Pb(Zr,Ti)O3 (PZT), BaTiO3 (BTO), and SrBi2Ta2O9 (SBT) have been studied widely because of their fast switching speed, large

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15

Shaw, Tarakeswar, Gopinath Samanta, Debasis Mitra, Bappaditya Mandal, and Robin Augustine. "Design of Metamaterial Based Efficient Wireless Power Transfer System Utilizing Antenna Topology for Wearable Devices." Sensors 21, no. 10 (2021): 3448. http://dx.doi.org/10.3390/s21103448.

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In this article, the design of an efficient wireless power transfer (WPT) system using antenna-based topology for the applications in wearable devices is presented. To implement the wearable WPT system, a simple circular patch antenna is initially designed on a flexible felt substrate by placing over a three-layer human tissue model to utilize as a receiving element. Meanwhile, a high gain circular patch antenna is also designed in the air environment to use as a transmitter for designing the wearable WPT link. The proposed WPT system is built to operate at the industrial, scientific and medic

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16

Sarner, Stephan, Norbert H. Menzler, Andrea Hilgers, and Olivier Guillon. "Recycling and Reuse Strategies for Ceramic Components of Solid Oxide Cells." ECS Meeting Abstracts MA2023-01, no. 54 (2023): 210. http://dx.doi.org/10.1149/ma2023-0154210mtgabs.

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Fuel Cell and Hydrogen (FCH) applications will become crucial to enable the transition towards decarbonatization and meet the EU's zero net greenhouse gas emission targets to be achieved by 2050 (The European Green Deal, European Commission, 2019). As one part of novel FCH technologies, Solid Oxide Cells (SOCs) can be used as fuel cells and electrolyzers, enabling a fuel-flexible and adaptable range of applications. However, the Technology Readiness Level (TRL) of SOCs is currently assessed at 5–7 (H2-international, October 2022), which is lower compared to most of the technologies mentioned a

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17

Gao, Bo-Wen, and Jing Meng. "Large area and flexible CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite solar cell fabricated by all ink jet printing." Acta Physica Sinica 70, no. 20 (2021): 208801. http://dx.doi.org/10.7498/aps.70.20210788.

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At present, there are many reports on the preparation of large area CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite solar cells based on ink-jet printing. These researches focus mainly on the ink-jet printing and electrode printing of perovskite active layer films. The hole transport layer, electron transport layer and other modified layers in the cell structure are still completed by spin coating or coating. In this work, we successfully realize large area CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> perovskite sola

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18

Henke, Kira Viktoria, Henning Weinrich, Hermann Tempel, and Rüdiger-A. Eichel. "Development of a Simple Ink Coating Procedure for BiVO₄ Photoanodes for Oxygen Evolution." ECS Meeting Abstracts MA2023-02, no. 47 (2023): 2285. http://dx.doi.org/10.1149/ma2023-02472285mtgabs.

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Photoelectrodes can be implemented in electrochemical cells to accelerate the reaction kinetics of the intended reactions, utilizing the support of visible light. Especially, photoanodes for the oxygen evolution reaction (OER) are of great interest for energy storage and conversion, since the OER is the anodic half-cell reaction of many Power-to-X technologies such as water splitting, CO2 electroreduction and metal-air battery recharge. However, the OER still limits their potential by being a kinetically hindered 4-electron transfer process. In previous research, bismuth vanadate (BiVO4) has s

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19

Aghassi-Hagmann, Jasmin. "(Invited) Solution-Processable Materials and Structuring Processes for Electrochemically Gated Thin Film Devices." ECS Meeting Abstracts MA2024-01, no. 31 (2024): 1545. http://dx.doi.org/10.1149/ma2024-01311545mtgabs.

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Printed and flexible electronics enable interesting novel applications in the fields of sensors [1], bioelectronics [2], and security applications [3]. Most of them gain their functionality from a layered structure composed of different materials that interact with each other. For semiconducting layers, organic and inorganic materials can be used; in this regard, the respective functional materials need to be formulated into inks that are then printed on various substrates. The structuring process of printing is a complex process in which many chemical and physical process parameters need to b

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20

Wang, Hao, Yaqin Pan, Yunfei Han, et al. "Large‐area Gravure‐printed AgNWs electrode on Water/Oxygen Barrier Substrate for Long‐term Stable Large‐area Flexible Organic Solar Cells." Chinese Journal of Chemistry, November 20, 2023. http://dx.doi.org/10.1002/cjoc.202300479.

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Comprehensive SummaryLarge‐area AgNWs electrodes (25 cm×10 cm) were fabricated through roll‐to‐roll printing on the polyvinyl alcohol (PVA) modified water and oxygen barrier substrate. The modification of the barrier film with PVA improved the wettability of silver nanowires on the barrier films and led to the formation of homogenous large‐area AgNWs networks with good air stability. The mechanical flexibility, especially the adhesion force between the silver electrode and the barrier film substrate was dramatically improved through PVA modification. The efficiency of 13.51% for the flexible O

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Wang, Yurui, Renxing Lin, Xiaoyu Wang, et al. "Oxidation-resistant all-perovskite tandem solar cells in substrate configuration." Nature Communications 14, no. 1 (2023). http://dx.doi.org/10.1038/s41467-023-37492-y.

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AbstractThe commonly-used superstrate configuration (depositing front subcell first and then depositing back subcell) in all-perovskite tandem solar cells is disadvantageous for long-term stability due to oxidizable narrow-bandgap perovskite assembled last and easily exposable to air. Here we reverse the processing order and demonstrate all-perovskite tandems in a substrate configuration (depositing back subcell first and then depositing front subcell) to bury oxidizable narrow-bandgap perovskite deep in the device stack. By using guanidinium tetrafluoroborate additive in wide-bandgap perovski

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22

Fujisaki, Y., Y. Nakajima, M. Nakata, H. Tsuji, and T. Yamamoto. "Fabrication of Organic Thin Film Transistor Arrays on Plastic and Paper Substrate for Flexible Display Application." MRS Proceedings 1628 (2014). http://dx.doi.org/10.1557/opl.2014.326.

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ABSTRACTOrganic thin-film transistors (OTFTs) are the most promising candidates for flexible electronics owing to their flexible structures, the simplicity of processing large-area devices, and excellent compatibility with flexible substrates. To date, many studies have been reported that have aimed at developing a wide range of plastic electronics such as flexible displays, sensors. In this paper, we discuss our recent work, focusing on OTFT arrays and their application to flexible display. An active-matrix (AM) backplane using a low-temperature cross-linkable olefin-type polymer as the gated

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Hou, Yue, Zhaoyu Li, Ziyu Wang, and Hongyu Yu. "Miura-ori structured flexible microneedle array electrode for biosignal recording." Microsystems & Nanoengineering 7, no. 1 (2021). http://dx.doi.org/10.1038/s41378-021-00259-w.

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AbstractHighly reliable signal recording with low electrode-skin impedance makes the microneedle array electrode (MAE) a promising candidate for biosignal sensing. However, when used in long-term health monitoring for some incidental diseases, flexible microneedles with perfectly skin-tight fit substrates lead to sweat accumulation inside, which will not only affect the signal output but also trigger some skin allergic reactions. In this paper, a flexible MAE on a Miura-ori structured substrate is proposed and fabricated with two-directional in-plane bendability. The results from the compariso

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Li, Fali, Wenjuan Lei, Yuwei Wang, et al. "Ultra-conformable liquid metal particle monolayer on air/water interface for substrate-free E-tattoo." npj Flexible Electronics 7, no. 1 (2023). http://dx.doi.org/10.1038/s41528-023-00263-2.

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AbstractGallium-based liquid metal has gained significant attention in conformal flexible electronics due to its high electrical conductivity, intrinsic deformability, and biocompatibility. However, the fabrication of large-area and highly uniform conformal liquid metal films remains challenging. Interfacial self-assembly has emerged as a promising method, but traditional approaches face difficulties in assembling liquid metal particles. Here, we realized the multi-size universal self-assembly (MUS) for liquid metal particles with various diameters (<500 μm). By implementing a z-axis undist

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Deng, Wenlong, Linyu Mei, Yue Niu, Zicheng Zhang, and Yunpeng Shao. "A novel AgNFs/MOF/CFC substrate-based flexible SERS sensor for high-sensitive detection of dye molecules." Engineering Research Express, June 3, 2024. http://dx.doi.org/10.1088/2631-8695/ad53a2.

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Abstract Metal-organic framework (MOF) materials have been increasingly used owing to their high porosity, chemical stability, and semiconducting properties. With the help of MOF materials, MOF-based SERS substrates can exhibit high sensitivity. Herein, we proposed a flower-like Ag nanoparticles (AgNFs)/metal-organic framework (MOF)/ carbon fiber cloth (CFC) substrate-based surface-enhanced Raman scattering (SERS) sensor for the high-sensitive detection of dye molecules. MOF is used as a signal amplifier to accelerate the approach of dye molecules near AgNFs on the MOF surface and anchor AgNFs

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Rong, Ping, Shiyong Gao, Lin Li, et al. "Centimeter‐Scale and Honeycomb‐Like Bismuth Sulfide Film Composed of Triangular Structural Units for Flexible Photodetector." Advanced Functional Materials, October 16, 2024. http://dx.doi.org/10.1002/adfm.202415014.

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AbstractFilms with honeycomb‐like structures have became ideal network structures for the development of flexible photodetectors due to their superior mechanical stability and merits in large active surface area, high carrier transport efficiency and well light absorption capacity. In this work, a honeycomb‐like Bi2S3 film with centimeter‐scale (2 cm × 2 cm) is synthesized on an ultrathin flexible fluorophlogopite mica substrate, which consists of a well‐stabilized arrangement of triangular unit structures forming an interconnected network structure. Based on the as‐grown honeycomb‐like Bi2S3

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Saraf, Rohit, Hua Fan, and Vivek Maheshwari. "Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors." npj Flexible Electronics 4, no. 1 (2020). http://dx.doi.org/10.1038/s41528-020-00094-5.

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AbstractFlexible, large-area, and stable perovskite photodetectors have drawn increasing widespread research attention for next-generation wearable and portable optoelectronic devices. However, high mechanical durability coupled with large device area and enhanced environmental stability has not been demonstrated yet to attain practical viability. Herein, a highly bendable, stable, and large-area (3 cm2) flexible polystyrene incorporated perovskite photodetector is presented. Due to the formation of a porous polystyrene-perovskite composite film in a single step it allows unprecedented mechani

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28

Liu, Wencheng, Kun Rui, Xiaoling Ye, et al. "Nitrogen‐Doped Graphene Oxide Nanoribbon Supported Cobalt Oxide Nanoparticles as High‐Performance Bifunctional Catalysts for Zinc–Air Battery." Advanced Energy and Sustainability Research, March 15, 2024. http://dx.doi.org/10.1002/aesr.202400001.

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Developing high‐performance, high‐stability, and low‐cost nonprecious metal catalysts to enhance the performance of zinc–air batteries (ZABs) holds significant importance. A bifunctional catalyst consisting of cobalt oxide (CoO) nanocrystals on nitrogen‐doped reduced graphene oxide nanoribbons (N‐rGONR) as a novel substrate is successfully synthesized in this work. This synthesized bifunctional catalyst exhibits mesoporous structure, and remarkable synergistic effects between CoO nanocrystals and N‐rGONR, demonstrating excellent activity and durability in both oxygen reduction reactions and ox

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Han, Xiangguang, Xiaoyu Wu, Libo Zhao, et al. "Facile assembly of flexible, stretchable and attachable symmetric microsupercapacitors with wide working voltage windows and favorable durability." Microsystems & Nanoengineering 10, no. 1 (2024). http://dx.doi.org/10.1038/s41378-024-00742-0.

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AbstractWith the increasing development of intelligent robots and wearable electronics, the demand for high-performance flexible energy storage devices is drastically increasing. In this study, flexible symmetric microsupercapacitors (MSCs) that could operate in a wide working voltage window were developed by combining laser-direct-writing graphene (LG) electrodes with a phosphoric acid-nonionic surfactant liquid crystal (PA-NI LC) gel electrolyte. To increase the flexibility and enhance the conformal ability of the MSC devices to anisotropic surfaces, after the interdigitated LG formed on the

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Deng, Jidong, Xiaofeng Huang, Yuliang Che, et al. "Salt‐Based Catalyzer to Aid Heterogeneous Nucleation Enabling >23% Efficient Electron‐Transport‐Layer‐Free Perovskite Solar Cells." Advanced Functional Materials, July 16, 2024. http://dx.doi.org/10.1002/adfm.202408392.

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AbstractCharge transport layers are critical components in perovskite solar cells (PSCs) for achieving satisfied power conversion efficiencies (PCEs) and device stability. However, these layers often bring incompatible interfaces and complex fabrication, limiting the stability and scalability of PSC technology. Here an alternative strategy of salt‐based catalyzer (SBC) is proposed to regulate the heterogeneous nucleation of perovskite, which enables uniform and well‐controlled perovskite coverage directly onto the salt‐treated substrate without electron transport layers (ETLs). By carefully ad

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An, Yang, Shun‐Xin Li, Jia‐Cheng Feng, and Hong Xia. "Highly Responsive, Polarization‐Sensitive, Flexible, and Stable Photodetectors Based on Highly Aligned CsCu₂I₃ Nanowires." Advanced Optical Materials, September 4, 2023. http://dx.doi.org/10.1002/adom.202301336.

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AbstractAs a new inorganic lead‐free perovskite, cesium copper iodide (CsCu2I3) has attracted wide attention in the field of photodetectors due to its non‐toxicity, good air and thermal stability, and excellent optoelectronic properties. However, the random growth and disordered distribution of CsCu2I3 crystals during their preparation results in poor crystal quality, seriously limiting their applications. Highly ordered CsCu2I3 crystal formation with high crystal quality for high‐performance photodetectors remains a major challenge. Here, an ingenious nanoimprinting technology is utilized to

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Peng, Yangyang, Fengxin Sun, Jianghui Jing, et al. "Switchable Pseudo‐Triaxial Structure Enabled Mechanosensory Textiles with Ultra‐Wide Detection Range for Flexible E‐Wearables." Advanced Functional Materials, September 3, 2024. http://dx.doi.org/10.1002/adfm.202411177.

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AbstractFlexible sensors hold significant promise for wearable monitoring and rehabilitation training applications. However, current flexible strain sensors struggle to compatible their sensing performance and fabrication with textile substrate and weaving technologies, which limits the practical applications of flexible sensors in commercial markets for electronic wearables. Differing from traditional strategies that rely on sophisticated construction of functional materials, leveraging industrial braiding, and weaving technologies, an all‐textile‐based pseudo‐triaxial mechanosensory textile

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Yang, Jie, Yuyang Wang, Xuqian Zhao, et al. "Atomically Dispersed Fe‐N₄ Bridged with MoO_x Clusters as a Bifunctional Electrocatalyst for Rechargeable Zn‐Air Battery." Advanced Functional Materials, October 10, 2024. http://dx.doi.org/10.1002/adfm.202416215.

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AbstractBifunctional oxygen electrocatalysts with low cost, high activity, and long‐term durability are highly desired for rechargeable zinc‐air batteries (RZABs). However, the design of such catalysts is a significant challenge. Herein, a new bifunctional electrocatalyst composed of atomically dispersed Fe‐N4 sites bridged with MoOx clusters (FeN4/MoOx) on carbon black substrate is designed for oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) involved in liquid and flexible RZABs. The FeN4/MoOx is prepared by pyrolyzing hematin porcine adsorbed on carbon black, followed by

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Mann, Dilpreet Singh, Sakshi Thakur, Sushil S. Sangale, Kwang‐Un Jeong, Sung‐Nam Kwon, and Seok‐In Na. "Interfacial Engineering of Nickel Oxide‐Perovskite Interface with Amino Acid Complexed NiO to Improve Perovskite Solar Cell Performance." Small, September 20, 2024. http://dx.doi.org/10.1002/smll.202405953.

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AbstractThe interface between NiO and perovskite in inverted perovskite solar cells (PSCs) is a major factor that can limit device performance due to defects and inappropriate redox reactions, which cause nonradiative recombination and decrease in open‐circuit voltage (VOC). In the present study, a novel approach is used for the first time, where an amino acid (glycine (Gly), alanine (Ala), and aminobutyric acid (ABA))‐complexed NiO are used as interface modifiers to eliminate defect sites and hydroxyl groups from the surface of NiO. The Ala‐complexed NiO suppresses interfacial non‐radiative r

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