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Kim J, Lee Y, Kang M, Hu L, Zhao S, Ahn JH. 2D Materials for Skin-Mountable Electronic Devices. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005858. [PMID: 33998064 DOI: 10.1002/adma.202005858] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/08/2020] [Indexed: 06/12/2023]
Abstract
Skin-mountable devices that can directly measure various biosignals and external stimuli and communicate the information to the users have been actively studied owing to increasing demand for wearable electronics and newer healthcare systems. Research on skin-mountable devices is mainly focused on those materials and mechanical design aspects that satisfy the device fabrication requirements on unusual substrates like skin and also for achieving good sensing capabilities and stable device operation in high-strain conditions. 2D materials that are atomically thin and possess unique electrical and optical properties offer several important features that can address the challenging needs in wearable, skin-mountable electronic devices. Herein, recent research progress on skin-mountable devices based on 2D materials that exhibit a variety of device functions including information input and output and in vitro and in vivo healthcare and diagnosis is reviewed. The challenges, potential solutions, and perspectives on trends for future work are also discussed.
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Affiliation(s)
- Jejung Kim
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Yongjun Lee
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Minpyo Kang
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Luhing Hu
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
| | - Songfang Zhao
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
- School of Material Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China
| | - Jong-Hyun Ahn
- School of Electrical and Electronic Engineering, Yonsei University, Seoul, 03722, Republic of Korea
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Qi L, Gao W, Jiang Q. Strain engineering of the electronic and transport properties of monolayer tellurenyne. Phys Chem Chem Phys 2019; 21:23119-23128. [PMID: 31608349 DOI: 10.1039/c9cp03547h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two-dimensional (2D) materials exhibiting quality electronic properties such as suitable band gap, giant Rashba effect and high carrier mobility are essential for promising applications in electronics and spintronics. Strain engineering has been recognized as an effective strategy to engineer the atomic and electronic properties of 2D materials. Herein, based on density functional theory, we demonstrate that the electronic properties of tellurenyne can be tuned well by using uniaxial strain. We find that tellurenyne retains the unique noncovalent bond structure and exhibits good stability under the uniaxial strain. Meanwhile, the band gap of tellurenyne can be tuned to a large scale (0.33-1.18 eV and 0.73-1.27 eV under the uniaxial strain along and perpendicular to the chain direction, respectively). Under 10% tension strain along the chain direction, the Rashba constant reaches 2.96 eV Å, belonging to giant Rashba systems. More importantly, the hole mobility of tellurenyne along the chain direction reaches 1.1 × 105 cm2 V-1 s-1 under 10% tension strain along the chain direction, which is one order of magnitude larger than that of phosphorene. Therefore, these remarkable electronic properties of tellurenyne engineered by using strain indicate its potential applications in electronics and spintronics.
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Affiliation(s)
- Liujian Qi
- Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University, 130022, Changchun, China.
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Qi L, Han J, Gao W, Jiang Q. Monolayer tellurenyne assembled with helical telluryne: structure and transport properties. NANOSCALE 2019; 11:4053-4060. [PMID: 30775772 DOI: 10.1039/c9nr00596j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Two-dimensional (2D) crystals are candidate materials for electronics and spintronics, but their deficient carrier mobility, inappreciable spin-orbit coupling effect, and environmental instability have such limited applications. Herein, using density functional theory methods, we propose a novel 2D monolayer material, named tellurenyne, built with an atomic tellurium chain (named telluryne) via a noncovalent bond. The comparable electrostatic and van der Waals contributions to interchain binding enable tellurenyne to exhibit remarkable stabilities and transport properties. The carrier mobility of tellurenyne is even higher than phosphorene, with the largest anisotropy among all known systems. Importantly, by changing the phase orders of one-dimensional telluryne, one can switch the preferred carrier type and rotate the dominant direction of carrier transport by 90°. Additionally, tellurenyne is found to exhibit Rashba spin splitting with the coupling parameter of 2.13 eV Å, belonging to the giant Rashba systems. Therefore, this novel 2D material, tellurenyne, is promising for applications in electronics and spintronics.
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Affiliation(s)
- Liujian Qi
- Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University 130022, Changchun, China.
| | - Jie Han
- Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University 130022, Changchun, China.
| | - Wang Gao
- Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University 130022, Changchun, China.
| | - Qing Jiang
- Key Laboratory of Automobile Materials, Ministry of Education, Department of Materials Science and Engineering, Jilin University 130022, Changchun, China.
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Liao X, Xiao H, Lu X, Chen Y, Shi X, Chen X. Closed-edged bilayer phosphorene nanoribbons producing from collapsing armchair phosphorene nanotubes. NANOTECHNOLOGY 2018; 29:085707. [PMID: 29300176 DOI: 10.1088/1361-6528/aaa52d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new phosphorous allotrope, closed-edged bilayer phosphorene nanoribbon, is proposed via radially deforming armchair phosphorene nanotubes. Using molecular dynamics simulations, the transformation pathway from round PNTs falls into two types of collapsed structures: arc-like and sigmoidal bilayer nanoribbons, dependent on the number of phosphorene unit cells. The fabricated nanoribbions are energetically more stable than their parent nanotubes. It is also found via ab initio calculations that the band structure along tube axis substantially changes with the structural transformation. The direct-to-indirect transition of band gap is highlighted when collapsing into the arc-like nanoribbons but not the sigmoidal ones. Furthermore, the band gaps of these two types of nanoribbons show significant size-dependence of the nanoribbon width, indicative of wider tunability of their electrical properties.
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Affiliation(s)
- Xiangbiao Liao
- Department of Earth and Environmental Engineering, Columbia University, New York, NY10027, United States of America
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Wu T, Deng K, Deng W, Lu R. Diverse carrier mobility of monolayer BNC x : a combined density functional theory and Boltzmann transport theory study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:455305. [PMID: 29049025 DOI: 10.1088/1361-648x/aa8d9b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BNC x monolayer as a kind of two-dimensional material has numerous chemical atomic ratios and arrangements with different electronic structures. Via calculations on the basis of density functional theory and Boltzmann transport theory under deformation potential approximation, the band structures and carrier mobilities of BNC x (x = 1,2,3,4) nanosheets are systematically investigated. The calculated results show that BNC2-1 is a material with very small band gap (0.02 eV) among all the structures while other BNC x monolayers are semiconductors with band gap ranging from 0.51 eV to 1.32 eV. The carrier mobility of BNC x varies considerably from tens to millions of cm2 V-1 s-1. For BNC2-1, the hole mobility and electron mobility along both x and y directions can reach 105 orders of magnitude, which is similar to the carrier mobility of graphene. Besides, all studied BNC x monolayers obviously have anisotropic hole mobility and electron mobility. In particular, for semiconductor BNC4, its hole mobility along the y direction and electron mobility along the x direction unexpectedly reach 106 orders of magnitude, even higher than that of graphene. Our findings suggest that BNC x layered materials with the proper ratio and arrangement of carbon atoms will possess desirable charge transport properties, exhibiting potential applications in nanoelectronic devices.
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Affiliation(s)
- Tao Wu
- Department of Applied Physics, Nanjing University of Science and Technology, Nanjing 210094, People's Republic of China. State Key Lab of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, People's Republic of China
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Gao L. Flexible Device Applications of 2D Semiconductors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2017; 13:1603994. [PMID: 28464480 DOI: 10.1002/smll.201603994] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 01/05/2017] [Indexed: 06/07/2023]
Abstract
Graphene-like single- or few-layer semiconductors, such as dichalcogenides and buckled nanocrystals, possess direct and tunable bandgaps, and excellent electrical, optical, mechanical and thermal properties. This unique set of desirable properties of 2D semiconductors has triggered great interest in developing ultra-thin 2D flexible electronic devices, which ranges from realizing better material quality and simplified fabrication processes, to improving device performance and expanding the application horizon. The most explored 2D flexible devices based on transition metal dichalcogenides and black phosphorous include field-effect transistors, optoelectronics, electronic sensors and supercapacitors. By taking advantage of a large portfolio of materials and properties of 2D crystals, a new generation of low-cost, high-performance, transparent, flexible and wearable devices looks attractive and promising in advancing flexible electronic technologies.
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Affiliation(s)
- Li Gao
- School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
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Gao J, Zhang G, Zhang YW. Vastly enhancing the chemical stability of phosphorene by employing an electric field. NANOSCALE 2017; 9:4219-4226. [PMID: 28290579 DOI: 10.1039/c7nr00894e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Currently, a major hurdle preventing phosphorene from various electronic applications is its rapid oxidation under ambient conditions. Thus how to enhance its chemical stability by suppressing oxidation becomes an urgent task. Here, we reveal a highly effective procedure to suppress the oxidation of phosphorene by employing a suitable van der Waals (vdW) substrate and a vertical electric field. Our first-principles study shows that the phosphorene-MoSe2 vdW heterostructure is able to reverse the stability of physisorption and chemisorption of molecular O2 on phosphorene. With further application of a vertical electric field of -0.6 V Å-1, the energy barrier for oxidation is able to further increase to 0.91 eV, leading to a 105 times enhancement in its lifetime compared with that without using the procedure at room temperature. Our work presents a viable strategy to vastly enhance the chemical stability of phosphorene in air.
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Affiliation(s)
- Junfeng Gao
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
| | - Gang Zhang
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
| | - Yong-Wei Zhang
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
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8
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Gao J, Liu X, Zhang G, Zhang YW. Nanotube-terminated zigzag edges of phosphorene formed by self-rolling reconstruction. NANOSCALE 2016; 8:17940-17946. [PMID: 27725985 DOI: 10.1039/c6nr06201f] [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 edge atomic configuration often plays an important role in dictating the properties of finite-sized two-dimensional (2D) materials. By performing ab initio calculations, we identify a highly stable zigzag edge of phosphorene, which is the most stable one among all the considered edges. Surprisingly, this highly stable edge exhibits a novel nanotube-like structure, which is topologically distinctively different from any previously reported edge reconstruction. We further show that this new edge type can form easily, with an energy barrier of only 0.234 eV. It may be the dominant edge type at room temperature under vacuum conditions or even under low hydrogen gas pressure. The calculated band structure reveals that the reconstructed edge possesses a bandgap of 1.23 eV. It is expected that this newly found edge structure may stimulate more studies in uncovering other novel edge types and further exploring their practical applications.
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Affiliation(s)
- Junfeng Gao
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
| | - Xiangjun Liu
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
| | - Gang Zhang
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
| | - Yong-Wei Zhang
- Institute of High Performance Computing, A*STAR, Singapore, 138632, Singapore.
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Sorkin V, Zhang YW. Mechanical properties of phosphorene nanotubes: a density functional tight-binding study. NANOTECHNOLOGY 2016; 27:395701. [PMID: 27535543 DOI: 10.1088/0957-4484/27/39/395701] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Using the density functional tight-binding method, we studied the elastic properties, deformation and failure of armchair (AC) and zigzag (ZZ) phosphorene nanotubes (PNTs) under uniaxial tensile strain. We found that the deformation and failure of PNTs are very much anisotropic. For ZZ PNTs, three deformation phases are recognized: the primary linear elastic phase-which is associated with interactions between neighboring puckers, succeeded by the bond rotation phase-where the puckered configuration of phosphorene is smoothed via bond rotation, and lastly the bond elongation phase-where the P-P bonds are directly stretched up to the maximally allowed limit and failure is initiated by the rupture of the most stretched bonds. For AC PNTs, the applied strain stretches the bonds up to the maximally allowed limit, causing their ultimate failure. For both AC and ZZ PNTs, their failure strain and failure stress are sensitive- while the Young's modulus, flexural rigidity, radial Poisson's ratio and thickness Poisson's ratio are relatively insensitive-to the tube diameter. More specifically, for AC PNTs, the failure strain decreases from 0.40 to 0.25 and the failure stress increases from 13 GPa to 21 GPa when the tube diameter increases from 13.3 Å to 32.8 Å; while for ZZ PNTs, the failure strain decreases from 0.66 to 0.55 and the failure stress increases from 4 GPa to 9 GPa when the tube diameter increases from 13.2 Å to 31.1 Å. The Young's modulus, flexural rigidity, radial and thickness Poisson ratios are 114.2 GPa, 0.019 eV · nm(2), 0.47 and 0.11 for AC PNTs, and 49.2 GPa, 0.071 eV · nm(2), 0.07 and 0.21 for ZZ PNTs, respectively. The present findings provide valuable references for the design and application of PNTs as device elements.
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Ray SJ, Venkata Kamalakar M, Chowdhury R. Ab initio studies of phoshorene island single electron transistor. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:195302. [PMID: 27093536 DOI: 10.1088/0953-8984/28/19/195302] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Phosphorene is a newly unveiled two-dimensional crystal with immense potential for nanoelectronic and optoelectronic applications. Its unique electronic structure and two dimensionality also present opportunities for single electron devices. Here we report the behaviour of a single electron transistor (SET) made of a phosphorene island, explored for the first time using ab initio calculations. We find that the band gap and the charging energy decrease monotonically with increasing layer numbers due to weak quantum confinement. When compared to two other novel 2D crystals such as graphene and MoS2, our investigation reveals larger adsorption energies of gas molecules on phosphorene, which indicates better a sensing ability. The calculated charge stability diagrams show distinct changes in the presence of an individual molecule which can be applied to detect the presence of different molecules with sensitivity at a single molecular level. The higher charging energies of the molecules within the SET display operational viability at room temperature, which is promising for possible ultra sensitive detection applications.
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Affiliation(s)
- S J Ray
- Department of Physics, Indian Institute of Technology Patna, Bitha, 801 103, Bihar, India
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11
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Schusteritsch G, Uhrin M, Pickard CJ. Single-Layered Hittorf's Phosphorus: A Wide-Bandgap High Mobility 2D Material. NANO LETTERS 2016; 16:2975-2980. [PMID: 27110837 DOI: 10.1021/acs.nanolett.5b05068] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
We propose here a two-dimensional material based on a single layer of violet or Hittorf's phosphorus. Using first-principles density functional theory, we find it to be energetically very stable, comparable to other previously proposed single-layered phosphorus structures. It requires only a small energetic cost of approximately 0.04 eV/atom to be created from its bulk structure, Hittorf's phosphorus, or a binding energy of 0.3-0.4 J/m(2) per layer, suggesting the possibility of exfoliation in experiments. We find single-layered Hittorf's phosphorus to be a wide band gap semiconductor with a direct band gap of approximately 2.5 eV, and our calculations show it is expected to have a high and highly anisotropic hole mobility with an upper bound lying between 3000-7000 cm(2) V(-1) s(-1). These combined properties make single-layered Hittorf's phosphorus a very good candidate for future applications in a wide variety of technologies, in particular for high frequency electronics, and optoelectronic devices operating in the low wavelength blue color range.
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Affiliation(s)
- Georg Schusteritsch
- Department of Physics and Astronomy, University College London , Gower Street, London WC1E 6BT, United Kingdom
- Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Martin Uhrin
- Department of Physics and Astronomy, University College London , Gower Street, London WC1E 6BT, United Kingdom
- Theory and Simulation of Materials (THEOS), and National Centre for Computational Design and Discovery of Novel Materials (MARVEL), École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
| | - Chris J Pickard
- Department of Physics and Astronomy, University College London , Gower Street, London WC1E 6BT, United Kingdom
- Department of Materials Science and Metallurgy, University of Cambridge , 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
- Advanced Institute for Materials Research, Tohoku University , 2-1-1 Katahira, Aoba, Sendai, 980-8577, Japan
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Gao J, Zhang G, Zhang YW. The Critical Role of Substrate in Stabilizing Phosphorene Nanoflake: A Theoretical Exploration. J Am Chem Soc 2016; 138:4763-71. [DOI: 10.1021/jacs.5b12472] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Junfeng Gao
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
| | - Gang Zhang
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
| | - Yong-Wei Zhang
- Institute of High Performance Computing, A*STAR, Singapore 138632, Singapore
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Zhang Z, Liu X, Yu J, Hang Y, Li Y, Guo Y, Xu Y, Sun X, Zhou J, Guo W. Tunable electronic and magnetic properties of two-dimensional materials and their one-dimensional derivatives. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2016; 6:324-350. [PMID: 27818710 PMCID: PMC5069645 DOI: 10.1002/wcms.1251] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/07/2016] [Accepted: 01/08/2016] [Indexed: 11/16/2022]
Abstract
Low‐dimensional materials exhibit many exceptional properties and functionalities which can be efficiently tuned by externally applied force or fields. Here we review the current status of research on tuning the electronic and magnetic properties of low‐dimensional carbon, boron nitride, metal‐dichalcogenides, phosphorene nanomaterials by applied engineering strain, external electric field and interaction with substrates, etc, with particular focus on the progress of computational methods and studies. We highlight the similarities and differences of the property modulation among one‐ and two‐dimensional nanomaterials. Recent breakthroughs in experimental demonstration of the tunable functionalities in typical nanostructures are also presented. Finally, prospective and challenges for applying the tunable properties into functional devices are discussed. WIREs Comput Mol Sci 2016, 6:324–350. doi: 10.1002/wcms.1251 For further resources related to this article, please visit the WIREs website. Conflict of interest: The authors have declared no conflicts of interest for this article.
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Affiliation(s)
- Zhuhua Zhang
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Xiaofei Liu
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Jin Yu
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Yang Hang
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Yao Li
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Yufeng Guo
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Ying Xu
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Xu Sun
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Jianxin Zhou
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
| | - Wanlin Guo
- State Key Laboratory of Mechanics and Control for Mechanical Structures and Key Laboratory for Intelligent Nano Materials and Devices (MOE) Nanjing University of Aeronautics and Astronautics Nanjing China
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Aierken Y, Çakır D, Peeters FM. Strain enhancement of acoustic phonon limited mobility in monolayer TiS3. Phys Chem Chem Phys 2016; 18:14434-41. [DOI: 10.1039/c6cp01809b] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Strain engineering is an effective way to tune the intrinsic properties of a material.
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Affiliation(s)
- Yierpan Aierken
- Department of Physics
- University of Antwerp
- 2610 Antwerpen
- Belgium
| | - Deniz Çakır
- Department of Physics
- University of Antwerp
- 2610 Antwerpen
- Belgium
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15
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Banerjee S, Pati SK. Charge-transport anisotropy in black phosphorus: critical dependence on the number of layers. Phys Chem Chem Phys 2016; 18:16345-52. [DOI: 10.1039/c6cp02129h] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tri-layer black phosphorus exhibits unique carrier-transport features. Two descriptors have been proposed to analyze the scattering process of electrons and holes and their recombination as well as relaxation dynamics in black phosphorus. This approach is general enough to be applied for the assessment of transport-anisotropy in any 2D (or quasi-2D) materials as well as the critical dependence on the number of layers.
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Affiliation(s)
- Swastika Banerjee
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore 560064
- India
| | - Swapan K. Pati
- New Chemistry Unit
- Jawaharlal Nehru Centre for Advanced Scientific Research
- Bangalore 560064
- India
- Theoretical Sciences Unit
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He Y, Xia F, Shao Z, Zhao J, Jie J. Surface Charge Transfer Doping of Monolayer Phosphorene via Molecular Adsorption. J Phys Chem Lett 2015; 6:4701-10. [PMID: 26545168 DOI: 10.1021/acs.jpclett.5b01920] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Monolayer phosphorene has attracted much attention owing to its extraordinary electronic, optical, and structural properties. Rationally tuning the electrical transport characteristics of monolayer phosphorene is essential to its applications in electronic and optoelectronic devices. Herein, we study the electronic transport behaviors of monolayer phosphorene with surface charge transfer doping of electrophilic molecules, including 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane (F4TCNQ), NO2, and MoO3, using density functional theory combined with the nonequilibrium Green's function formalism. F4TCNQ shows optimal performance in enhancing the p-type conductance of monolayer phosphorene. Static electronic properties indicate that the enhancement is originated from the charge transfer between adsorbed molecule and phosphorene layer. Dynamic transport behaviors demonstrate that additional channels for hole transport in host monolayer phosphorene were generated upon the adsorption of molecule. Our work unveils the great potential of surface charge transfer doping in tuning the electronic properties of monolayer phosphorene and is of significance to its application in high-performance devices.
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Affiliation(s)
- Yuanyuan He
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University , Suzhou 215123, Jiangsu, P. R. China
| | - Feifei Xia
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University , Suzhou 215123, Jiangsu, P. R. China
| | - Zhibin Shao
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University , Suzhou 215123, Jiangsu, P. R. China
| | - Jianwei Zhao
- Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University , Nanjing 21008, Jiangsu, P. R. China
| | - Jiansheng Jie
- Institute of Functional Nano & Soft Materials (FUNSOM), Collaborative Innovation Center of Suzhou Nano Science and Technology (NANO-CIC), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University , Suzhou 215123, Jiangsu, P. R. China
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Jing Y, Zhang X, Zhou Z. Phosphorene: what can we know from computations? WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2015. [DOI: 10.1002/wcms.1234] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu Jing
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education); Nankai University; Tianjin P. R. China
- Computational Centre for Molecular Science; Nankai University; Tianjin P. R. China
- Institute of New Energy Material Chemistry; Nankai University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin P. R. China
- School of Materials Science and Engineering; Nankai University; Tianjin P. R. China. National Institute for Advanced Materials; Nankai University; Tianjin P. R. China
| | - Xu Zhang
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education); Nankai University; Tianjin P. R. China
- Computational Centre for Molecular Science; Nankai University; Tianjin P. R. China
- Institute of New Energy Material Chemistry; Nankai University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin P. R. China
- School of Materials Science and Engineering; Nankai University; Tianjin P. R. China. National Institute for Advanced Materials; Nankai University; Tianjin P. R. China
| | - Zhen Zhou
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education); Nankai University; Tianjin P. R. China
- Computational Centre for Molecular Science; Nankai University; Tianjin P. R. China
- Institute of New Energy Material Chemistry; Nankai University; Tianjin P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Nankai University; Tianjin P. R. China
- School of Materials Science and Engineering; Nankai University; Tianjin P. R. China. National Institute for Advanced Materials; Nankai University; Tianjin P. R. China
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Liu TH, Chang CC. Anisotropic thermal transport in phosphorene: effects of crystal orientation. NANOSCALE 2015; 7:10648-10654. [PMID: 26024364 DOI: 10.1039/c5nr01821h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
As an intrinsic thermally anisotropic material, the thermal properties of phosphorene must vary with respect to the crystal chirality. Nevertheless, previous studies of heat transfer in phosphorene have been limited to the 0.0° (zigzag, ZZ) and 90.0° (armchair, AC) chiralities. In this study, we investigate the orientation-dependent thermal transport in phosphorene sheets with a complete set of crystal chirality ranging from 0.0° to 90.0° using the Boltzmann transport equation (BTE) associated with the first-principles calculations. It was found that in the phosphorene sheets, the intrinsic thermal conductivity is a smooth monotonic decreasing function of the crystal chirality, which exhibits sinusoidal behavior bounded by the two terminated values 48.9 (0.0°) and 27.8 (90.0°) W m(-1) K(-1). The optical modes have unusually large contributions to heat transfer, which account for almost 30% of the total thermal conductivity of phosphorene sheets. This is because the optical phonons have comparable group velocities and relaxation times to the acoustic phonons.
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Affiliation(s)
- Te-Huan Liu
- Institute of Applied Mechanics, National Taiwan University, 1 Sec. 4, Roosevelt Road, Taipei 106, Taiwan.
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