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Artykuły w czasopismach na temat „Graphene based 2-dimensional systems”

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Data publikacji: 7 września 2023

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1

Dolina, Ekaterina S., Pavel A. Kulyamin, Anastasiya A. Grekova, Alexey I. Kochaev, Mikhail M. Maslov, and Konstantin P. Katin. "Thermal Stability and Vibrational Properties of the 6,6,12-Graphyne-Based Isolated Molecules and Two-Dimensional Crystal." Materials 16, no. 5 (2023): 1964. http://dx.doi.org/10.3390/ma16051964.

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We report the geometry, kinetic energy, and some optical properties of the 6,6,12-graphyne-based systems. We obtained the values of their binding energies and structural characteristics such as bond lengths and valence angles. Moreover, using nonorthogonal tight-binding molecular dynamics, we carried out a comparative analysis of the thermal stability of 6,6,12-graphyne-based isolated fragments (oligomer) and two-dimensional crystals constructed on its basis in a wide temperature range from 2500 to 4000 K. We found the temperature dependence of the lifetime for the finite graphyne-based oligom
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2

KAN, ERJUN, ZHENYU LI, and JINLONG YANG. "MAGNETISM IN GRAPHENE SYSTEMS." Nano 03, no. 06 (2008): 433–42. http://dx.doi.org/10.1142/s1793292008001350.

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Graphene has attracted great interest in materials science, owing to its novel electronic structures. Recently, magnetism discovered in graphene-based systems has opened up the possibility of their spintronics application. This paper provides a comprehensive review of the magnetic behaviors and electronic structures of graphene systems, including two-dimensional graphene, one-dimensional graphene nanoribbons, and zero-dimensional graphene nanoclusters. Theoretical research suggests that such metal-free magnetism mainly comes from the localized states or edges states. By applying an external el
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3

Marchenko, D., D. V. Evtushinsky, E. Golias, A. Varykhalov, Th Seyller, and O. Rader. "Extremely flat band in bilayer graphene." Science Advances 4, no. 11 (2018): eaau0059. http://dx.doi.org/10.1126/sciadv.aau0059.

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We propose a novel mechanism of flat band formation based on the relative biasing of only one sublattice against other sublattices in a honeycomb lattice bilayer. The mechanism allows modification of the band dispersion from parabolic to “Mexican hat”–like through the formation of a flattened band. The mechanism is well applicable for bilayer graphene—both doped and undoped. By angle-resolved photoemission from bilayer graphene on SiC, we demonstrate the possibility of realizing this extremely flattened band (< 2-meV dispersion), which extends two-dimensionally in a k-space area around the
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4

Knoll, T., G. Jenke, A. Brenner, et al. "Zweifarben-Druckanlage für die Sensorherstellung/Two-colour printing machine for sensor production - Rotary printing of foil-based graphene sensors." wt Werkstattstechnik online 107, no. 11-12 (2017): 827–33. http://dx.doi.org/10.37544/1436-4980-2017-11-12-51.

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Der Fachartikel stellt eine kompakte Zweifarben-Druckanlage für die Fertigung folienbasierter Sensoren aus Graphen vor. Mithilfe einer Graphentinte sowie eines rotativen Tiefdruckverfahrens lassen sich zweidimensionale Elektrodenstrukturen beliebiger Geometrie in hohen Stückzahlen fertigen. Beschrieben werden die Druckanlage, die Herstellung der Tiefdruckzylinder und der graphenbasierten Tinte sowie die bisher beim Drucken von Elektroden für zellbasierte Sensoren erzielten Ergebnisse.   The article presents a compact two-colour printing system for the production of foil-based sensors
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5

Barlas, Yafis, Kun Yang, and A. H. MacDonald. "Quantum Hall effects in graphene-based two-dimensional electron systems." Nanotechnology 23, no. 5 (2012): 052001. http://dx.doi.org/10.1088/0957-4484/23/5/052001.

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6

Chen, Yiwen, Habibullah, Guanghui Xia, et al. "Palladium-Phosphide-Modified Three-Dimensional Phospho-Doped Graphene Materials for Hydrogen Storage." Materials 16, no. 12 (2023): 4219. http://dx.doi.org/10.3390/ma16124219.

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The development of efficient hydrogen storage materials is crucial for advancing hydrogen-based energy systems. In this study, we prepared a highly innovative palladium-phosphide-modified P-doped graphene hydrogen storage material with a three-dimensional configuration (3D Pd3P0.95/P-rGO) using a hydrothermal method followed by calcination. This 3D network hindering the stacking of graphene sheets provided channels for hydrogen diffusion to improve the hydrogen adsorption kinetics. Importantly, the construction of the three-dimensional palladium-phosphide-modified P-doped graphene hydrogen sto
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7

Wang, Xiunan, Yi Liu, Jingcheng Xu, et al. "Molecular Dynamics Study of Stability and Diffusion of Graphene-Based Drug Delivery Systems." Journal of Nanomaterials 2015 (2015): 1–14. http://dx.doi.org/10.1155/2015/872079.

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Graphene, a two-dimensional nanomaterial with unique biomedical properties, has attracted great attention due to its potential applications in graphene-based drug delivery systems (DDS). In this work graphene sheets with various sizes and graphene oxide functionalized with polyethylene glycol (GO-PEG) are utilized as nanocarriers to load anticancer drug molecules including CE6, DOX, MTX, and SN38. We carried out molecular dynamics calculations to explore the energetic stabilities and diffusion behaviors of the complex systems with focuses on the effects of the sizes and functionalization of gr
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8

Jana, Susmita, Arka Bandyopadhyay, Sujoy Datta, Debaprem Bhattacharya, and Debnarayan Jana. "Emerging properties of carbon based 2D material beyond graphene." Journal of Physics: Condensed Matter 34, no. 5 (2021): 053001. http://dx.doi.org/10.1088/1361-648x/ac3075.

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Abstract Graphene turns out to be the pioneering material for setting up boulevard to a new zoo of recently proposed carbon based novel two dimensional (2D) analogues. It is evident that their electronic, optical and other related properties are utterly different from that of graphene because of the distinct intriguing morphology. For instance, the revolutionary emergence of Dirac cones in graphene is particularly hard to find in most of the other 2D materials. As a consequence the crystal symmetries indeed act as a major role for predicting electronic band structure. Since tight binding calcu
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9

Koppens, F. H. L., T. Mueller, Ph Avouris, A. C. Ferrari, M. S. Vitiello, and M. Polini. "Photodetectors based on graphene, other two-dimensional materials and hybrid systems." Nature Nanotechnology 9, no. 10 (2014): 780–93. http://dx.doi.org/10.1038/nnano.2014.215.

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10

Si, Wei, Chang Chen, Gensheng Wu, et al. "High Efficient Seawater Desalination Based on Parallel Nanopore Systems." Nano 16, no. 07 (2021): 2150077. http://dx.doi.org/10.1142/s1793292021500776.

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Graphene is one of the most attractive two-dimensional materials that can be used for efficient desalination due to its ideal physical properties and high performance in ion selectivity and salt rejection. Here, in this paper, molecular dynamics simulations were applied to investigate the possibility of using a parallel nanopore system to pump ions so that the ions of both cation and anion species in the middle compartment could be evacuated at an extremely rapid rate. By building hexagonal parallel single-layer graphene films with spacing of 3.0 nm and changing the pore numbers and surface ch
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11

Kaptagai, G. A., B. M. Satanova, F. U. Abuova, et al. "OPTICAL PROPERTIES OF LOW-DIMENSIONAL SYSTEMS: METHODS OF THEORETICAL STUDY OF 2D MATERIALS." NNC RK Bulletin, no. 4 (December 31, 2022): 35–40. http://dx.doi.org/10.52676/1729-7885-2022-4-35-40.

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Heterostructures based on graphene and two-dimensional films of nanostructured, ferromagnetic, transition metal oxides are promising for the development of new multifunctional materials for memory cells, quantum computer elements, Li-battery anodes, (photo) catalysts, supercapacitors, transistors, sensor materials, solar panels, fuel cells, electrochromic devices. A large volume of publications devoted to graphene and heterostructures based on it is and mainly their synthesis processes of hybrid structures. The methods of theoretical investigation of the optical properties of two-dimensional f
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12

Meng, Yancheng, Baowen Li, Luxian Li, and Jianqiang Zhang. "Buckling Behavior of Few-Layer Graphene on Soft Substrate." Coatings 12, no. 12 (2022): 1983. http://dx.doi.org/10.3390/coatings12121983.

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The buckling behavior of graphene on soft films has been extensively studied. However, to avoid graphene fracture, most studies focus only on the primary buckling behavior induced by tiny compression. Here, the buckling behavior of monolayer, three-layer, and four-layer graphene on soft films is systematically studied in the experiment under large compression. The cross-sections of buckling patterns in these few-layer graphenes are provided, which depend on focused ion beam (FIB) technology. More significantly, the moduli of few-layer graphene are calculated based on the buckling behavior. We
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13

Jorio, Ado. "Raman Spectroscopy in Graphene-Based Systems: Prototypes for Nanoscience and Nanometrology." ISRN Nanotechnology 2012 (December 6, 2012): 1–16. http://dx.doi.org/10.5402/2012/234216.

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Raman spectroscopy is a powerful tool to characterize the different types of sp2 carbon nanostructures, including two-dimensional graphene, one-dimensional nanotubes, and the effect of disorder in their structures. This work discusses why sp2 nanocarbons can be considered as prototype materials for the development of nanoscience and nanometrology. The sp2 nanocarbon structures are quickly introduced, followed by a discussion on how this field evolved in the past decades. In sequence, their rather rich Raman spectra composed of many peaks induced by single- and multiple-resonance effects are in
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14

Fang, Haiqiu, Dongfang Yang, Zizhen Su, et al. "Preparation and Application of Graphene and Derived Carbon Materials in Supercapacitors: A Review." Coatings 12, no. 9 (2022): 1312. http://dx.doi.org/10.3390/coatings12091312.

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Graphene has recently attracted a wide range of research interests due to its rigorous two-dimensional structure and extraordinary electrical, thermal and mechanical properties. As a conductive agent, an activated carbon supercapacitor can obtain better performance. This paper summarizes the latest research progress, mainly from two aspects: (1) the preparation of an activated carbon base for a supercapacitor based on waste sugar solution and the relationship between pore structure and activation parameters, and (2) the application of the two-dimensional materials graphene and its composite ma
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15

Monne, Mahmuda Akter, Peter Mack Grubb, Harold Stern, Harish Subbaraman, Ray T. Chen, and Maggie Yihong Chen. "Inkjet-Printed Graphene-Based 1 × 2 Phased Array Antenna." Micromachines 11, no. 9 (2020): 863. http://dx.doi.org/10.3390/mi11090863.

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Low-cost and conformal phased array antennas (PAAs) on flexible substrates are of particular interest in many applications. The major deterrents to developing flexible PAA systems are the difficulty in integrating antenna and electronics circuits on the flexible surface, as well as the bendability and oxidation rate of radiating elements and electronics circuits. In this research, graphene ink was developed from graphene flakes and used to inkjet print the radiating element and the active channel of field effect transistors (FETs). Bending and oxidation tests were carried out to validate the a
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16

Li, Jinhui, Guoping Zhang, Rong Sun, and C. P. Wong. "Three-Dimensional Graphene-Based Composite for Elastic Strain Sensor Applications." MRS Advances 1, no. 34 (2016): 2415–20. http://dx.doi.org/10.1557/adv.2016.508.

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ABSTRACTFlexible electronics has emerged as a very promising field, in particular,wearable, bendable, and stretchable strain sensors with high sensitivity which could be used for human motion detection, sports performance monitoring, etc. In this paper, a highly stretchable and sensitive strain sensor composed of reduced graphene oxide foam and elastomer composite is fabricated by assembly and followed by a polymer immersing process. The strain sensor has demonstrated high stretchability and sensitivity. Furthermore, the device was employed for gauging muscle-induced strain which results in hi
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17

Zhou, Fanglei, Mahdi Fathizadeh, and Miao Yu. "Single- to Few-Layered, Graphene-Based Separation Membranes." Annual Review of Chemical and Biomolecular Engineering 9, no. 1 (2018): 17–39. http://dx.doi.org/10.1146/annurev-chembioeng-060817-084046.

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Two-dimensional, graphene-based materials have attracted great attention as a new membrane building block, primarily owing to their potential to make the thinnest possible membranes and thus provide the highest permeance for effective sieving, assuming comparable porosity to conventional membranes and uniform molecular-sized pores. However, a great challenge exists to fabricate large-area, single-layered graphene or graphene oxide (GO) membranes that have negligible undesired transport pathways, such as grain boundaries, tears, and cracks. Therefore, model systems, such as a single flake or na
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18

Yi, Lingjun, and Changhong Li. "Simulation Study of In-Phase and Out-Phase Enhanced Absorption of Graphene Based on Parity–Time Symmetry One-Dimensional Photonic Crystal Structure." Crystals 11, no. 12 (2021): 1513. http://dx.doi.org/10.3390/cryst11121513.

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In the field of modern optical communication systems and photoelectric detection, new components with complex functions and excellent performance are urgently needed. In this paper, a graphene-based parity–time (PT) symmetry structure is proposed, which is achieved by preparing the graphene layer on the top of a PT-symmetry photonic crystal. The transfer matrix method was used to calculate the absorptance of graphene, and a unique amplified absorption effect was found. Meanwhile, the peak value and wavelength position of the absorption can be modulated via the applied electric field. The resul
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19

Ksiksi, M. A., M. K. Azizi, H. Ajlani, and A. Gharsallah. "A Graphene based Frequency Reconfigurable Square Patch Antenna for Telecommunication Systems." Engineering, Technology & Applied Science Research 9, no. 5 (2019): 4846–50. http://dx.doi.org/10.48084/etasr.3061.

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Current research on tunable patch antennas for wireless applications has mostly focused on the dimensional variations of patch elements, such as geometry and substrate materials, using different techniques to achieve the reconfiguration. The use of different mixing materials to ensure reconfiguration and improvement of antenna performance in microwave frequencies has not yet been studied thoroughly. In this article, we consider graphene as a patch material, due to its unique chemical, mechanical, electronic, thermal and optical features, which assist in providing a highly flexible and adaptive
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20

Wang, Yan, Lei Guo, Pengfei Qi, Xiaomin Liu, and Gang Wei. "Synthesis of Three-Dimensional Graphene-Based Hybrid Materials for Water Purification: A Review." Nanomaterials 9, no. 8 (2019): 1123. http://dx.doi.org/10.3390/nano9081123.

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Graphene-based nanostructures and nanomaterials have been widely used for the applications in materials science, biomedicine, tissue engineering, sensors, energy, catalysis, and environmental science due to their unique physical, chemical, and electronic properties. Compared to two-dimensional (2D) graphene materials, three-dimensional (3D) graphene-based hybrid materials (GBHMs) exhibited higher surface area and special porous structure, making them excellent candidates for practical applications in water purification. In this work, we present recent advances in the synthesis and water remedi
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21

Meenakshi, Sudheesh Shukla, Jagriti Narang, et al. "Switchable Graphene-Based Bioelectronics Interfaces." Chemosensors 8, no. 2 (2020): 45. http://dx.doi.org/10.3390/chemosensors8020045.

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Integration of materials acts as a bridge between the electronic and biological worlds, which has revolutionized the development of bioelectronic devices. This review highlights the rapidly emerging field of switchable interface and its bioelectronics applications. This review article highlights the role and importance of two-dimensional (2D) materials, especially graphene, in the field of bioelectronics. Because of the excellent electrical, optical, and mechanical properties graphene have promising application in the field of bioelectronics. The easy integration, biocompatibility, mechanical
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Navalón, Sergio, Wee-Jun Ong, and Xiaoguang Duan. "Sustainable Catalytic Processes Driven by Graphene-Based Materials." Processes 8, no. 6 (2020): 672. http://dx.doi.org/10.3390/pr8060672.

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In the recent two decades, graphene-based materials have achieved great successes in catalytic processes towards sustainable production of chemicals, fuels and protection of the environment. In graphene, the carbon atoms are packed into a well-defined sp2-hybridized honeycomb lattice, and can be further constructed into other dimensional allotropes such as fullerene, carbon nanotubes, and aerogels. Graphene-based materials possess appealing optical, thermal, and electronic properties, and the graphitic structure is resistant to extreme conditions. Therefore, the green nature and robust framewo
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23

Ghanbarlou, Hosna, Nikoline Loklindt Pedersen, Morten Enggrob Simonsen, and Jens Muff. "Nitrogen-Doped Graphene Iron-Based Particle Electrode Outperforms Activated Carbon in Three-Dimensional Electrochemical Water Treatment Systems." Water 12, no. 11 (2020): 3121. http://dx.doi.org/10.3390/w12113121.

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The synergy between electrochemical oxidation and adsorption on particle electrodes was investigated in three-dimensional (3D) systems for p-nitrosodimethylaniline (RNO) decolorization and pesticide removal. A comparison was made between granular activated carbon (GAC) and a novel synthesized nitrogen-doped graphene-based particle electrode (NCPE). Experiments on RNO decolorization show that the synergy parameter of the 3D-NCPE system was improved 3000 times compared to the studied 3D-GAC system. This was due to the specific nanostructure and composition of the NCPE material. Nitrogen-doped gr
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24

Zhang, Yani, Lei Zhou, Dun Qiao, et al. "Progress on Optical Fiber Biochemical Sensors Based on Graphene." Micromachines 13, no. 3 (2022): 348. http://dx.doi.org/10.3390/mi13030348.

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Graphene, a novel form of the hexagonal honeycomb two-dimensional carbon-based structural material with a zero-band gap and ultra-high specific surface area, has unique optoelectronic capabilities, promising a suitable basis for its application in the field of optical fiber sensing. Graphene optical fiber sensing has also been a hotspot in cross-research in biology, materials, medicine, and micro-nano devices in recent years, owing to prospective benefits, such as high sensitivity, small size, and strong anti-electromagnetic interference capability and so on. Here, the progress of optical fibe
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25

Klimchitskaya, G. L. "Quantum field theory of the Casimir force for graphene." International Journal of Modern Physics A 31, no. 02n03 (2016): 1641026. http://dx.doi.org/10.1142/s0217751x16410268.

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We present theoretical description of the Casimir interaction in graphene systems which is based on the Lifshitz theory of dispersion forces and the formalism of the polarization tensor in (2+1)-dimensional space-time. The representation for the polarization tensor of graphene allowing the analytic continuation to the whole plane of complex frequencies is given. This representation is used to obtain simple asymptotic expressions for the reflection coefficients at all Matsubara frequencies and to investigate the origin of large thermal effect in the Casimir force for graphene. The developed the
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26

Keel, Emma, Ammara Ejaz, Michael Mckinlay, et al. "Three-dimensional graphene foam based triboelectric nanogenerators for energy systems and autonomous sensors." Nano Energy 112 (July 2023): 108475. http://dx.doi.org/10.1016/j.nanoen.2023.108475.

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Klimchitskaya, Galina L., and Vladimir M. Mostepanenko. "Casimir and Casimir-Polder Forces in Graphene Systems: Quantum Field Theoretical Description and Thermodynamics." Universe 6, no. 9 (2020): 150. http://dx.doi.org/10.3390/universe6090150.

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We review recent results on the low-temperature behaviors of the Casimir-Polder and Casimir free energy an entropy for a polarizable atom interacting with a graphene sheet and for two graphene sheets, respectively. These results are discussed in the wide context of problems arising in the Lifshitz theory of van der Waals and Casimir forces when it is applied to metallic and dielectric bodies. After a brief treatment of different approaches to theoretical description of the electromagnetic response of graphene, we concentrate on the derivation of response function in the framework of thermal qu
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28

Jayasekera, Thushari, K. W. Kim, and M. Buongiorno Nardelli. "Electronic and Structural Properties of Turbostratic Epitaxial Graphene on the 6H-SiC (000-1) Surface." Materials Science Forum 717-720 (May 2012): 595–600. http://dx.doi.org/10.4028/www.scientific.net/msf.717-720.595.

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We propose an atomistic model to study the interface properties of mis-oriented (turbostratic) epitaxial graphene on SiC (000-1) surface. Using calculations from first principles, we compare the energetics, and structural/electronic properties of AB and turbostratic stacking sequences within a model based on the Si adatom surface reconstruction. Our calculations show that the systems with AB and turbostratic sequences are very close in energy, demonstrating the possibility of the observation of Moire patterns in epitaxial graphene on the C-face of SiC. The two-dimensional electron gas behavior
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29

Shahzad, Asif, Jae-Min Oh, Mudassar Azam, et al. "Advances in the Synthesis and Application of Anti-Fouling Membranes Using Two-Dimensional Nanomaterials." Membranes 11, no. 8 (2021): 605. http://dx.doi.org/10.3390/membranes11080605.

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This article provides a comprehensive review of the recent progress in the application of advanced two-dimensional nanomaterials (2DNMs) in membranes fabrication and application for water purification. The membranes fouling, its types, and anti-fouling mechanisms of different 2DNMs containing membrane systems are also discussed. The developments in membrane synthesis and modification using 2DNMs, especially graphene and graphene family materials, carbon nanotubes (CNTs), MXenes, and others are critically reviewed. Further, the application potential of next-generation 2DNMs-based membranes in w
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Li, Cuimei, Tianya Li, Guangtao Yu, and Wei Chen. "Theoretical Investigation of HER and OER Electrocatalysts Based on the 2D R-graphyne Completely Composed of Anti-Aromatic Carbon Rings." Molecules 28, no. 9 (2023): 3888. http://dx.doi.org/10.3390/molecules28093888.

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Based on the DFT calculations, two-dimensional (2D) R-graphyne has been demonstrated to have high stability and good conductivity, which can be conducive to the relevant electrocatalytic activity of the material. Different from the poor graphene, R-graphyne, which is completely composed of anti-aromatic structural units, can exhibit certain HER catalytic activity. In addition, doping the TM atoms in Group VIIIB can be considered an effective strategy to enhance the HER catalytic activity of R-graphyne. Particularly, Fe@R-graphyne, Os@R-graphyne, Rh@R-graphyne and Ir@R-graphyne can exhibit high
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Tian, Jingkun, Fei Xing, and Qiqian Gao. "Graphene-Based Nanomaterials as the Cathode for Lithium-Sulfur Batteries." Molecules 26, no. 9 (2021): 2507. http://dx.doi.org/10.3390/molecules26092507.

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The global energy crisis and environmental problems are becoming increasingly serious. It is now urgent to vigorously develop an efficient energy storage system. Lithium-sulfur batteries (LSBs) are considered to be one of the most promising candidates for next-generation energy storage systems due to their high energy density. Sulfur is abundant on Earth, low-cost, and environmentally friendly, which is consistent with the characteristics of new clean energy. Although LSBs possess numerous advantages, they still suffer from numerous problems such as the dissolution and diffusion of sulfur inte
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Kausar, Ayesha, Ishaq Ahmad, M. H. Eisa, and Malik Maaza. "Graphene Nanocomposites in Space Sector—Fundamentals and Advancements." C 9, no. 1 (2023): 29. http://dx.doi.org/10.3390/c9010029.

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Graphene is one of the most significant carbon nanomaterials, with a one-atom-thick two-dimensional nanostructure. Like other nanocarbons, graphene has been used as a polymer reinforcement. This review explores the impact of graphene and graphene-based nanocomposites on aerospace applications. The fabrication and indispensable features of graphene-derived nanocomposites have been considered. Numerous polymers and nanocomposites have been employed for aerospace systems such as reinforced thermosetting/thermoplastic polymers and epoxy/graphene nanocomposites. Moreover, graphene-modified carbon-f
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Panin, Gennady N. "Low-Dimensional Layered Light-Sensitive Memristive Structures for Energy-Efficient Machine Vision." Electronics 11, no. 4 (2022): 619. http://dx.doi.org/10.3390/electronics11040619.

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Layered two-dimensional (2D) and quasi-zero-dimensional (0D) materials effectively absorb radiation in the wide ultraviolet, visible, infrared, and terahertz ranges. Photomemristive structures made of such low-dimensional materials are of great interest for creating optoelectronic platforms for energy-efficient storage and processing of data and optical signals in real time. Here, photosensor and memristor structures based on graphene, graphene oxide, bismuth oxyselenide, and transition metal dichalcogenides are reviewed from the point of view of application in broadband image recognition in a
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Raagulan, Kanthasamy, Bo Mi Kim, and Kyu Yun Chai. "Recent Advancement of Electromagnetic Interference (EMI) Shielding of Two Dimensional (2D) MXene and Graphene Aerogel Composites." Nanomaterials 10, no. 4 (2020): 702. http://dx.doi.org/10.3390/nano10040702.

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The two Dimensional (2D) materials such as MXene and graphene, are most promising materials, as they have attractive properties and attract numerous application areas like sensors, supper capacitors, displays, wearable devices, batteries, and Electromagnetic Interference (EMI) shielding. The proliferation of wireless communication and smart electronic systems urge the world to develop light weight, flexible, cost effective EMI shielding materials. The MXene and graphene mixed with polymers, nanoparticles, carbon nanomaterial, nanowires, and ions are used to create materials with different stru
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Xiao, Yang, Fang Luo, Yuchen Zhang, Feng Hu, Mengjian Zhu, and Shiqiao Qin. "A Review on Graphene-Based Nano-Electromechanical Resonators: Fabrication, Performance, and Applications." Micromachines 13, no. 2 (2022): 215. http://dx.doi.org/10.3390/mi13020215.

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The emergence of graphene and other two-dimensional materials overcomes the limitation in the characteristic size of silicon-based micro-resonators and paved the way in the realization of nano-mechanical resonators. In this paper, we review the progress to date of the research on the fabrication methods, resonant performance, and device applications of graphene-based nano-mechanical resonators, from theoretical simulation to experimental results, and summarize both the excitation and detection schemes of graphene resonators. In recent years, the applications of graphene resonators such as mass
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36

Pugno, N. "Non-linear statics and dynamics of nanoelectromechanical systems based on nanoplates and nanowires." Proceedings of the Institution of Mechanical Engineers, Part N: Journal of Nanoengineering and Nanosystems 219, no. 1 (2005): 29–40. http://dx.doi.org/10.1243/174034905x5593.

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An analysis of the three-dimensional nanoelectromechanical systems (NEMS) is presented. Nanotubes could be a key one-dimensional element in future NEMS device; but they would be inadequate when two- or three-dimensional structures are required. A general free-energy-based formulation to treat statics and dynamics of three-dimensional NEMS, according to classical or quantum mechanics, is derved and presenteed; the method is then applied to nanoplates and nanowires. The equilibrium and stability of an elastic (e.g., graphene sheet) nanoplate-based NEMS under an electrical field and van der Waals
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37

Ghosal, Supriya, and Debnarayan Jana. "Beyond T-graphene: Two-dimensional tetragonal allotropes and their potential applications." Applied Physics Reviews 9, no. 2 (2022): 021314. http://dx.doi.org/10.1063/5.0088275.

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Breakthrough of graphene dictates that decreasing dimensionality of the semiconducting materials can generate unusual electronic structures, excellent mechanical, and thermal characteristics with remarkable stability. Silicene, germanene, and stanene are the next 2D stable counterparts of other elements belonging to the same group. Since these monolayers possess hexagonal symmetry, scientists had already explored the possibility in the post graphene era of whether hexagonal symmetry was the main and utmost criterion for achieving Dirac cone. This motivation gave birth to T-graphene, a tetragon
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38

Memisoglu, Gorkem, Raghavan Chinnambedu Murugesan, Joseba Zubia, and Aleksey G. Rozhin. "Graphene Nanocomposite Membranes: Fabrication and Water Treatment Applications." Membranes 13, no. 2 (2023): 145. http://dx.doi.org/10.3390/membranes13020145.

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Graphene, a two-dimensional hexagonal honeycomb carbon structure, is widely used in membrane technologies thanks to its unique optical, electrical, mechanical, thermal, chemical and photoelectric properties. The light weight, mechanical strength, anti-bacterial effect, and pollution-adsorption properties of graphene membranes are valuable in water treatment studies. Incorporation of nanoparticles like carbon nanotubes (CNTs) and metal oxide into the graphene filtering nanocomposite membrane structure can provide an improved photocatalysis process in a water treatment system. With the rapid dev
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Joe, Daniel J., Eunpyo Park, Dong Hyun Kim, Il Doh, Hyun-Cheol Song, and Joon Young Kwak. "Graphene and Two-Dimensional Materials-Based Flexible Electronics for Wearable Biomedical Sensors." Electronics 12, no. 1 (2022): 45. http://dx.doi.org/10.3390/electronics12010045.

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The use of graphene and two-dimensional materials for industrial, scientific, and medical applications has recently received an enormous amount of attention due to their exceptional physicochemical properties. There have been numerous efforts to incorporate these two-dimensional materials into advanced flexible electronics, especially aimed for wearable biomedical applications. Here, recent advances in two-dimensional materials-based flexible electronic sensors for wearable biomedical applications with regard to both materials and devices are presented.
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Patole, Shashikant. "Green Approach for Fabrication of Holey Graphene Based Electrode for Supercapacitor Application." ECS Meeting Abstracts MA2022-01, no. 7 (2022): 626. http://dx.doi.org/10.1149/ma2022-017626mtgabs.

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Holey graphene, also known as perforated graphene is formed generating in-plane holes in basal planes of graphene based materials. By combining the advantages of holes and graphene, holey graphene based materials have attained significant research interest in energy storage systems due to the high surface and high electrical conductivity. In the present work, the holey graphene nanosheets are synthesized using ‘metal catalyst activation strategy’ using a green chemistry approach. The synthesized holey graphene nanosheets are studied in detail using various comprehensive characterization and el
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41

Hernandez Linares, I. G., and G. Gonzalez de la Cruz. "Role of Plasmon Modes on the Optical Reflectivity of Graphene-Metallic Structures: A Theoretical Approach." Journal of Nano Research 60 (November 2019): 76–85. http://dx.doi.org/10.4028/www.scientific.net/jnanor.60.76.

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In recent years, the tunable plasmon modes in the terahertz region of a multilayer graphene structure interacting with a metallic film substrate have attracted significant interest motivated by the graphene´s unique optical and electronic properties and the possibility to enhance light-matter interaction. In this work, the plasmon waves in graphene layered systems on a conducting thin film are investigated, the hybrid graphene-metal metamaterialis surrounded by two semi-infinite materials with different dielectric constants ε1andε2, respectively. The dispersion relations of electronic collecti
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42

Chen, Guangze, Maryam Khosravian, Jose L. Lado, and Aline Ramires. "Designing spin-textured flat bands in twisted graphene multilayers via helimagnet encapsulation." 2D Materials 9, no. 2 (2022): 024002. http://dx.doi.org/10.1088/2053-1583/ac4af8.

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Abstract Twisted graphene multilayers provide tunable platforms to engineer flat bands and exploit the associated strongly correlated physics. The two-dimensional nature of these systems makes them suitable for encapsulation by materials that break specific symmetries. In this context, recently discovered two-dimensional helimagnets, such as the multiferroic monolayer NiI2, are specially appealing for breaking time-reversal and inversion symmetries due to their nontrivial spin textures. Here we show that this spin texture can be imprinted on the electronic structure of twisted bilayer graphene
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43

Wang, Ying, Yue Shen, Xingya Wang, et al. "Nanoscale mapping of dielectric properties based on surface adhesion force measurements." Beilstein Journal of Nanotechnology 9 (March 16, 2018): 900–906. http://dx.doi.org/10.3762/bjnano.9.84.

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The detection of local dielectric properties is of great importance in a wide variety of scientific studies and applications. Here, we report a novel method for the characterization of local dielectric distributions based on surface adhesion mapping by atomic force microscopy (AFM). The two-dimensional (2D) materials graphene oxide (GO), and partially reduced graphene oxide (RGO), which have similar thicknesses but large differences in their dielectric properties, were studied as model systems. Through direct imaging of the samples with a biased AFM tip in PeakForce Quantitative Nano-Mechanics
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Ahmad, Varish, and Mohammad Omaish Ansari. "Antimicrobial Activity of Graphene-Based Nanocomposites: Synthesis, Characterization, and Their Applications for Human Welfare." Nanomaterials 12, no. 22 (2022): 4002. http://dx.doi.org/10.3390/nano12224002.

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Graphene (GN)-related nanomaterials such as graphene oxide, reduced graphene oxide, quantum dots, etc., and their composites have attracted significant interest owing to their efficient antimicrobial properties and thus newer GN-based composites are being readily developed, characterized, and explored for clinical applications by scientists worldwide. The GN offers excellent surface properties, i.e., a large surface area, pH sensitivity, and significant biocompatibility with the biological system. In recent years, GN has found applications in tissue engineering owing to its impressive stiffnes
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Cheng, Chi, Gengping Jiang, Christopher J. Garvey, et al. "Ion transport in complex layered graphene-based membranes with tuneable interlayer spacing." Science Advances 2, no. 2 (2016): e1501272. http://dx.doi.org/10.1126/sciadv.1501272.

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Investigation of the transport properties of ions confined in nanoporous carbon is generally difficult because of the stochastic nature and distribution of multiscale complex and imperfect pore structures within the bulk material. We demonstrate a combined approach of experiment and simulation to describe the structure of complex layered graphene-based membranes, which allows their use as a unique porous platform to gain unprecedented insights into nanoconfined transport phenomena across the entire sub–10-nm scales. By correlation of experimental results with simulation of concentration-driven
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46

Wu, Zhiqiang, Jun Wei, Rongzhen Dong, and Hao Chen. "A Three-Dimensional Strain Rosette Sensor Based on Graphene Composite with Piezoresistive Effect." Journal of Sensors 2019 (November 22, 2019): 1–12. http://dx.doi.org/10.1155/2019/2607893.

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Obtaining the internal stress and strain state of concrete to evaluate the safety and reliability of structures is the important purpose of concrete structural health monitoring. In this paper, a three-dimensional (3D) strain rosette sensor was designed and fabricated using graphene-based piezoresistive composite to measure the strains in concrete structures. The piezoresistive composite was prepared using reduced graphene oxide (RGO) as conductive filler, cellulose nanofiber (CNF) as dispersant and structural skeleton, and waterborne epoxy (WEP) as polymer matrix. The mechanical, electrical,
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47

Karbalaei Akbari, Mohammad, Nasrin Siraj Lopa, Marina Shahriari, Aliasghar Najafzadehkhoee, Dušan Galusek, and Serge Zhuiykov. "Functional Two-Dimensional Materials for Bioelectronic Neural Interfacing." Journal of Functional Biomaterials 14, no. 1 (2023): 35. http://dx.doi.org/10.3390/jfb14010035.

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Realizing the neurological information processing by analyzing the complex data transferring behavior of populations and individual neurons is one of the fast-growing fields of neuroscience and bioelectronic technologies. This field is anticipated to cover a wide range of advanced applications, including neural dynamic monitoring, understanding the neurological disorders, human brain–machine communications and even ambitious mind-controlled prosthetic implant systems. To fulfill the requirements of high spatial and temporal resolution recording of neural activities, electrical, optical and bio
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48

Datta, Dibakar. "(Invited, Digital Presentation) Understanding Interfacial Chemo-Mechanics of Two-Dimensional Materials-Based Heterogeneous Functional Materials for Energy Storage." ECS Meeting Abstracts MA2022-01, no. 38 (2022): 1655. http://dx.doi.org/10.1149/ma2022-01381655mtgabs.

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Two-dimensional (2D) materials and their heterostructures (2D + nD, n = 0,1,2,3) attracted enormous interest in wide range of applications including electrochemical systems, e.g., batteries. Electro-chemo-mechanics, the coupling of mechanics and electrochemistry, plays a crucial role in designing these systems. This talk considers battery as a model system and demonstrates the role of 2D materials in overcoming various interfacial electro-chemo-mechanical challenges. 2D materials are engineered as the van der Waals (vdW) “slippery” interface. For example, silicon (Si) electrodes can be placed
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Özkan, Doğuş, M. Cenk Özekinci, Zeynep Taşlıçukur Öztürk, and Egemen Sulukan. "Two Dimensional Materials for Military Applications." Defence Science Journal 70, no. 6 (2020): 672–81. http://dx.doi.org/10.14429/dsj.70.15879.

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This paper particularly focuses on 2D materials and their utilization in military applications. 2D and heterostructured 2D materials have great potential for military applications in developing energy storage devices, sensors, electronic devices, and weapon systems. Advanced 2D material-based sensors and detectors provide high awareness and significant opportunities to attain correct data required for planning, optimization, and decision-making, which are the main factors in the command and control processes in the military operations. High capacity sensors and detectors or energy storage can
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Kuznetsov, A. A., N. R. Maksimova, V. S. Kaimonov, G. N. Alexandrov, and S. A. Smagulova. "A New Approach To the Diagnosis of Point Mutations in Native DNA Using Graphene Oxide." Acta Naturae 8, no. 2 (2016): 87–91. http://dx.doi.org/10.32607/20758251-2016-8-2-87-91.

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Development of new methods for the diagnosis of point mutations is a pressing issue. We have developed a new approach to the design of graphene oxide-based test systems for the diagnosis of point mutations in native DNA. This new approach is based on the use of graphene oxide for the adsorption and quenching of fluorescently labeled primers in a post-amplification PCR mixture followed by detection of fluorescently labeled PCR products. It is possible to detect fluorescently labelled amplicons in the presence of an excess of primers in a PCR product solution due to the different affinities of s
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