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Qiao Y, Shen H, Zhang F, Liu S, Yin H. W 4PCl 11 monolayer: an unexplored 2D material with moderate direct bandgap and strong visible-light absorption for highly efficient solar cells. NANOSCALE 2022; 14:12386-12394. [PMID: 35972044 DOI: 10.1039/d2nr03009h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The discovery of novel two-dimensional (2D) materials with excellent electronic and optoelectronic properties have attracted much scientific attention. Based on the first-principles calculations, we predict an unexplored 2D W4PCl11 monolayer, which is potentially strippable from its bulk counterpart with the exfoliation energy of only 0.16 J m-2. The dynamical, thermal, and mechanical stabilities have also been confirmed. Remarkably, W4PCl11 monolayer is direct semiconductor with a bandgap of 1.25 eV, which endows the monolayer with very strong visible-light absorption in the magnitude of 105 cm-1. Meanwhile, the calculated carrier mobilities of W4PCl11 monolayer can reach to 103 cm2 V-1 s-1. Considering the moderate direct bandgap and high carrier mobility, W4PCl11 monolayer should be a superior candidate for the donor material of excitonic solar cells. The estimated power conversion efficiency of the fabricated W4PCl11/Bi2WO6 heterojunction reaches as high as 21.64%, which much superior to those of most recently reported 2D heterojunction. All these outstanding properties accompanied with its experimental feasibility endows W4PCl11 monolayer with promising photovoltaic applications.
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Affiliation(s)
- Yusen Qiao
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Huimin Shen
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Fumin Zhang
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Siyuan Liu
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Huabing Yin
- Joint Center for Theoretical Physics, and Institute for Computational Materials Science, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
- International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China
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2
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Shi X, Jiang S, Han X, Wei M, Wang B, Zhao G, Zheng GP, Yin H. Ultrahigh mechanical flexibility induced superior piezoelectricity of InSeBr-type 2D Janus materials. Phys Chem Chem Phys 2022; 24:8371-8377. [PMID: 35332903 DOI: 10.1039/d2cp00918h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
InSeBr-Type monolayers, ternary In(Se,S)(Br,Cl) compounds, are typical two-dimensional (2D) Janus materials and can be exfoliated from their bulk crystals. The structural stability, electronic properties, mechanical flexibility, and intrinsic piezoelectricity of these InSeBr-type 2D Janus monolayers are comprehensively investigated by first-principles calculations. Our calculations show that the stable InSeBr-type monolayers exhibit ultrahigh mechanical flexibility with low Young's moduli. Due to the amazing flexibility of the InSeBr monolayer with an ultra-low Young's modulus of 0.81 N m-1, the piezoelectric strain coefficient d11 can reach 103 pm V-1 orders of magnitude (around 2361-3224 pm V-1), which is larger than those of reported 2D materials and even superior to those of conventional perovskite bulk materials. Such a superior piezoelectric response of InSeBr-type monolayers could facilitate their practical applications in sensors and energy harvesters.
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Affiliation(s)
- Xiaobo Shi
- Institute for Computational Materials Science, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,Institute of Artificial Intelligence, Henan Finance University, Zhengzhou 450046, China
| | - Shujuan Jiang
- Institute for Computational Materials Science, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China. .,Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China.
| | - Xianwei Han
- Institute for Computational Materials Science, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Min Wei
- Department of Physics and Electronic Engineering, Jinzhong University, Jinzhong 030619, China
| | - Bing Wang
- Institute for Computational Materials Science, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Gaofeng Zhao
- Institute for Computational Materials Science, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Guang-Ping Zheng
- Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong 999077, China.
| | - Huabing Yin
- Institute for Computational Materials Science, International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, School of Physics and Electronics, Henan University, Kaifeng 475004, China.
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3
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Strain induced structural transformation, mechanical and phonon stability in silicene derived 2D-SiB. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2020.07.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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4
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Hu T, Yang J, Li W, Wang X, Li CM. Quantifying the rigidity of 2D carbides (MXenes). Phys Chem Chem Phys 2020; 22:2115-2121. [DOI: 10.1039/c9cp05412j] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The intrinsic in-plane stiffness (C) and out-of-plane rigidity (D) of four typical MXenes are quantified by first-principles calculations, with both exhibiting a strong thickness-dependent character.
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Affiliation(s)
- Tao Hu
- Institute of Materials Science and Devices
- Suzhou University of Science and Technology
- Suzhou 215009
- China
- Shenyang National Laboratory for Materials Science
| | - Jinxing Yang
- Shenyang National Laboratory for Materials Science
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Wu Li
- Institute for Advanced Study
- Shenzhen University
- Shenzhen 518060
- China
| | - Xiaohui Wang
- Shenyang National Laboratory for Materials Science
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Chang Ming Li
- Institute of Materials Science and Devices
- Suzhou University of Science and Technology
- Suzhou 215009
- China
- Institute for Cross-field Science and College of Life Science
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5
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Peng Q. Strain-induced dimensional phase change of graphene-like boron nitride monolayers. NANOTECHNOLOGY 2018; 29:405201. [PMID: 29998860 DOI: 10.1088/1361-6528/aad2f8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We investigate the coupling between the electronic bandgap and mechanical loading of graphene-like boron nitride (h-BN ) monolayers up to failure strains and beyond by means of first-principles calculations. We reveal that the kinks in the bandgap-strain curve are coincident with the ultimate tensile strains, indicating a phase change. When the armchair strain is beyond the ultimate tensile strain, h-BN fails with a phase transformation from 2D honeycomb to 1D chain structure, characterized by the 'V'-shape bandgap-strain curve. Large biaxial strains can break the 2D honeycomb structures into 0D individual atoms and the bandgap closes.
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Affiliation(s)
- Qing Peng
- Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, United States of America. Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, United States of America. School of Power and Mechanical Engineering, Wuhan University, Wuhan, 430072, People's Republic of China
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6
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Gunda H, Das SK, Jasuja K. Simple, Green, and High‐Yield Production of Boron‐Based Nanostructures with Diverse Morphologies by Dissolution and Recrystallization of Layered Magnesium Diboride Crystals in Water. Chemphyschem 2018; 19:880-891. [DOI: 10.1002/cphc.201701033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Harini Gunda
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
| | - Saroj Kumar Das
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
| | - Kabeer Jasuja
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
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7
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Kondo T. Recent progress in boron nanomaterials. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2017; 18:780-804. [PMID: 29152014 PMCID: PMC5678458 DOI: 10.1080/14686996.2017.1379856] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/12/2017] [Accepted: 09/12/2017] [Indexed: 06/07/2023]
Abstract
Various types of zero, one, and two-dimensional boron nanomaterials such as nanoclusters, nanowires, nanotubes, nanobelts, nanoribbons, nanosheets, and monolayer crystalline sheets named borophene have been experimentally synthesized and identified in the last 20 years. Owing to their low dimensionality, boron nanomaterials have different bonding configurations from those of three-dimensional bulk boron crystals composed of icosahedra or icosahedral fragments. The resulting intriguing physical and chemical properties of boron nanomaterials are fascinating from the viewpoint of material science. Moreover, the wide variety of boron nanomaterials themselves could be the building blocks for combining with other existing nanomaterials, molecules, atoms, and/or ions to design and create materials with new functionalities and properties. Here, the progress of the boron nanomaterials is reviewed and perspectives and future directions are described.
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Affiliation(s)
- Takahiro Kondo
- Faculty of Pure and Applied Sciences, University of Tsukuba, Tsukuba, Japan
- Tsukuba Research Center for Interdisciplinary Materials Science, and Center for Integrated Research in Fundamental Science and Engineering, University of Tsukuba, Tsukuba, Japan
- Materials Research Center for Element Strategy, Tokyo Institute of Technology, Yokohama, Japan
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8
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Shao P, Duan X, Xu J, Tian J, Shi W, Gao S, Xu M, Cui F, Wang S. Heterogeneous activation of peroxymonosulfate by amorphous boron for degradation of bisphenol S. JOURNAL OF HAZARDOUS MATERIALS 2017; 322:532-539. [PMID: 27776864 DOI: 10.1016/j.jhazmat.2016.10.020] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 09/23/2016] [Accepted: 10/12/2016] [Indexed: 06/06/2023]
Abstract
Recently, tremendous efforts have been devoted to developing carbon-based metal-free catalysts as an alternative to metal-based catalysts for remediation of emerging contaminants. However, further investigations have demonstrated that the durability of carbocatalysts is poor. Therefore, it is extremely desirable to seek a novel metal-free catalyst with high efficiency and superb stability. Herein, we first discovered that amorphous boron (A-boron) can be used as a metal-free catalyst for peroxymonosulfate (PMS) activation to produce free radicals for effective degradation of bisphenol S (BPS), which is a newly-occurring estrogenic endocrine-disrupting chemical. It exhibited outstanding catalytic activity and superior stability as comparing to metal-based and metal-free carbon-based catalysts. Moreover, many other typical organic pollutants in water such as bisphenol F, sulfamethoxazole, rhodamine B and methyl orange can also be effectively decomposed in A-boron/PMS oxidative system. The effects of reaction parameters on BPS degradation were systematically investigated. The catalytic oxidation mechanism was proposed. The intriguing catalytic feature of A-boron discovered in this study will provide new opportunities for the future development of A-boron based materials with promising applications in water remediation.
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Affiliation(s)
- Penghui Shao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Xiaoguang Duan
- Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia
| | - Jun Xu
- Department of Civil Engineering and Architecture, Nanyang Normal University, Nanyang 473061, PR China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, PR China.
| | - Jiayu Tian
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China.
| | - Wenxin Shi
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Shanshan Gao
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Mingjun Xu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Fuyi Cui
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, PR China
| | - Shaobin Wang
- Department of Chemical Engineering, Curtin University, GPO Box U1987, Perth, WA 6845, Australia.
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9
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Hu T, Yang J, Wang X. Carbon vacancies in Ti2CT2MXenes: defects or a new opportunity? Phys Chem Chem Phys 2017; 19:31773-31780. [DOI: 10.1039/c7cp06593k] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon vacancies that are usually considered as defects substantially endow MXenes with improved flexibility and enhanced electronic conductivity.
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Affiliation(s)
- Tao Hu
- Shenyang National Laboratory for Materials Science
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Jinxing Yang
- Shenyang National Laboratory for Materials Science
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
| | - Xiaohui Wang
- Shenyang National Laboratory for Materials Science
- Institute of Metal Research
- Chinese Academy of Sciences
- Shenyang 110016
- China
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10
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Kong X, Liu Q, Zhang C, Peng Z, Chen Q. Elemental two-dimensional nanosheets beyond graphene. Chem Soc Rev 2017; 46:2127-2157. [DOI: 10.1039/c6cs00937a] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The recent progress of elemental two-dimensional nanosheets, beyond graphene, has been summarized with the focus on their preparation and applications.
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Affiliation(s)
- Xiangkai Kong
- School of Physics and Electronic Information
- Huaibei Normal University
- Huaibei
- P. R. China
- High Magnetic Field Laboratory
| | - Qiangchun Liu
- School of Physics and Electronic Information
- Huaibei Normal University
- Huaibei
- P. R. China
| | - Changlin Zhang
- Joint Center for Artificial Photosynthesis
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - Zhenmeng Peng
- Department of Chemical and Biomolecular Engineering
- University of Akron
- Akron
- USA
| | - Qianwang Chen
- High Magnetic Field Laboratory
- Chinese Academy of Sciences
- Hefei
- P. R. China
- Hefei National Laboratory for Physical Science at Microscale and Department of Materials Science & Technology
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11
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Le MQ, Mortazavi B, Rabczuk T. Mechanical properties of borophene films: a reactive molecular dynamics investigation. NANOTECHNOLOGY 2016; 27:445709. [PMID: 27678335 DOI: 10.1088/0957-4484/27/44/445709] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The most recent experimental advances could provide ways for the fabrication of several atomic thick and planar forms of boron atoms. For the first time, we explore the mechanical properties of five types of boron films with various vacancy ratios ranging from 0.1-0.15, using molecular dynamics simulations with ReaxFF force field. It is found that the Young's modulus and tensile strength decrease with increasing the temperature. We found that boron sheets exhibit an anisotropic mechanical response due to the different arrangement of atoms along the armchair and zigzag directions. At room temperature, 2D Young's modulus and fracture stress of these five sheets appear in the range 63-136 N m(-1) and 12-19 N m(-1), respectively. In addition, the strains at tensile strength are in the ranges of 9%-14%, 11%-19%, and 10%-16% at 1, 300, and 600 K, respectively. This investigation not only reveals the remarkable stiffness of 2D boron, but establishes relations between the mechanical properties of the boron sheets to the loading direction, temperature and atomic structures.
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Affiliation(s)
- Minh Quy Le
- Department of Mechanics of Materials and Structures, School of Mechanical Engineering, Hanoi University of Science and Technology, No. 1, Dai Co Viet Road, Hanoi, Vietnam
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12
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Zhang Z, Xie Y, Peng Q, Chen Y. Phonon transport in single-layer boron nanoribbons. NANOTECHNOLOGY 2016; 27:445703. [PMID: 27669055 DOI: 10.1088/0957-4484/27/44/445703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Inspired by the successful synthesis of three two-dimensional (2D) allotropes, the boron sheet has recently been one of the hottest 2D materials around. However, to date, phonon transport properties of these new materials are still unknown. By using the non-equilibrium Green's function (NEGF) combined with the first principles method, we study ballistic phonon transport in three types of boron sheets; two of them correspond to the structures reported in the experiments, while the third one is a stable structure that has not been synthesized yet. At room temperature, the highest thermal conductance of the boron nanoribbons is comparable with that of graphene, while the lowest thermal conductance is less than half of graphene's. Compared with graphene, the three boron sheets exhibit diverse anisotropic transport characteristics. With an analysis of phonon dispersion, bonding charge density, and simplified models of atomic chains, the mechanisms of the diverse phonon properties are discussed. Moreover, we find that many hybrid patterns based on the boron allotropes can be constructed naturally without doping, adsorption, and defects. This provides abundant nanostructures for thermal management and thermoelectric applications.
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Affiliation(s)
- Zhongwei Zhang
- Department of Physics, Xiangtan University, Xiangtan 411105, Hunan, People's Republic of China
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13
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Mortazavi B, Rahaman O, Dianat A, Rabczuk T. Mechanical responses of borophene sheets: a first-principles study. Phys Chem Chem Phys 2016; 18:27405-27413. [DOI: 10.1039/c6cp03828j] [Citation(s) in RCA: 114] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Effect of loading direction and point vacancy on the mechanical response of several borophene films are studied using DFT method.
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Affiliation(s)
- Bohayra Mortazavi
- Institute of Structural Mechanics
- Bauhaus-Universität Weimar
- D-99423 Weimar
- Germany
| | - Obaidur Rahaman
- Institute of Structural Mechanics
- Bauhaus-Universität Weimar
- D-99423 Weimar
- Germany
| | - Arezoo Dianat
- Institute for Materials Science and Max Bergman Center of Biomaterials
- 01062 Dresden
- Germany
| | - Timon Rabczuk
- Institute of Structural Mechanics
- Bauhaus-Universität Weimar
- D-99423 Weimar
- Germany
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14
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Li XB, Xie SY, Zheng H, Tian WQ, Sun HB. Boron based two-dimensional crystals: theoretical design, realization proposal and applications. NANOSCALE 2015; 7:18863-18871. [PMID: 26523799 DOI: 10.1039/c5nr04359j] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The successful realization of free-standing graphene and the various applications of its exotic properties have spurred tremendous research interest for two-dimensional (2D) layered materials. Besides graphene, many other 2D materials have been successfully produced by experiment, such as silicene, monolayer MoS2, few-layer black phosphorus and so on. As a neighbor of carbon in the periodic table, element boron is interesting and many researchers have contributed their efforts to realize boron related 2D structures. These structures may be significant both in fundamental science and future technical applications in nanoelectronics and nanodevices. In this review, we summarize the recent developments of 2D boron based materials. The theoretical design, possible experimental realization strategies and their potential technical applications are presented and discussed. Also, the current challenges and prospects of this area are discussed.
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Affiliation(s)
- Xian-Bin Li
- State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun 130012, China.
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15
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Peng Q, Han L, Lian J, Wen X, Liu S, Chen Z, Koratkar N, De S. Mechanical degradation of graphene by epoxidation: insights from first-principles calculations. Phys Chem Chem Phys 2015; 17:19484-90. [PMID: 26143751 DOI: 10.1039/c5cp02986d] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxidation is a major cause for the degradation of materials including graphene, where epoxidation (forming the C-O-C bond) is very common. In addition, graphene oxide, in which the epoxy group is one of the two major functional groups (the other is hydroxy), is an important precursor material used for the bulk synthesis of graphene sheets. Information about the mechanical stabilities, non-linear elastic properties, and elastic limits under various strain components is invaluable for application of these nanomaterials. Here, we investigate the mechanical properties of the epoxidized graphene in ordered graphene oxide, namely C6O1, C6O2, and C6O3, representing the carbon : oxygen ratios of 6 : 1, 3 : 1, and 2 : 1, respectively, using first-principles calculations within the framework of density functional theory. We predict a reduction of Young's modulus of graphene by a factor of 20%, 23%, and 27% for C6O1, C6O2, and C6O3, respectively, indicating a monotonic degradation with respect to epoxidation. However, there is no clear trend for Poisson's ratio, implying that the local atomic configurations are dominant over oxygen concentrations in determining the Poisson ratio. Our computed high order elastic constants are good for the design of graphene oxide based flexible transparent electronics.
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Affiliation(s)
- Qing Peng
- Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
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16
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Peng Q, Han L, Wen X, Liu S, Chen Z, Lian J, De S. Mechanical properties and stabilities of g-ZnS monolayers. RSC Adv 2015. [DOI: 10.1039/c4ra13872d] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Planar graphene-like ZnS monolayers are mechanically stable under various large strains.
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Affiliation(s)
- Qing Peng
- Department of Mechanical, Aerospace and Nuclear Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Liang Han
- Department of Mechanical, Aerospace and Nuclear Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Xiaodong Wen
- State Key Laboratory of Coal Conversion
- Institute of Coal Chemistry
- Chinese Academy of Sciences
- Taiyuan
- China
| | - Sheng Liu
- School of Power and Mechanical Engineering
- Wuhan University
- Wuhan
- China
| | - Zhongfang Chen
- Department of Chemistry
- Institute for Functional Nanomaterials
- University of Puerto Rico
- Rio Piedras Campus
- San Juan
| | - Jie Lian
- Department of Mechanical, Aerospace and Nuclear Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
| | - Suvranu De
- Department of Mechanical, Aerospace and Nuclear Engineering
- Rensselaer Polytechnic Institute
- Troy
- USA
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