Knowledge Management System of Hefei Institute of Physical Science，CAS
| Two-Dimensional IV-V Monolayers with Highly Anisotropic Carrier Mobility and Electric Transport Properties | |
Li, Pengfei1,2; Wu, Wenjun3; Xu, Yuehua3; Liu, Jun1,2; Wu, Shouliang1,2 ; Ye, Yixing1,2; Liang, Changhao1,2; Zeng, Xiao Cheng4
| |
| 2021-01-28 | |
| Source Publication | JOURNAL OF PHYSICAL CHEMISTRY LETTERS
 |
| ISSN | 1948-7185 |
| Corresponding Author | Xu, Yuehua(yhxu@cczu.edu.cn) ; Liang, Changhao(chliang@issp.ac.cn) ; Zeng, Xiao Cheng(xzeng1@unl.edu) |
| Abstract | Two dimensional (2D) semiconductors with anisotropic properties (e.g., mechanical, optical, and electric transport anisotropy) have long been sought in materials research, especially 2D semiconducting sheets with strong anisotropy in carrier mobility, e.g., n-type in one direction and p-type in another direction. Here, we report a comprehensive study of the carrier mobility and electric transport anisotropy of a class of 2D IV-V monolayers, XAs (X = Si or Ge), by using density functional theory methods coupled with deformation potential theory and non-equilibrium Green's function method. We find that the polarity of room-temperature carrier mobility mu of the 2D XAs monolayer is highly dependent on the lattice direction. In particular, for the SiAs monolayer, the mu values of the electron (e) and hole (h) are 1.25 x 10(3) and 0.39 x 10(3) cm(2) V-1 s(-1), respectively, in the a direction and 0.31 x 10(3) and 1.12 x 10(3) cm(2) s(-1), respectively, for the b direction. The computed electric transport properties also show that the SiAs monolayer exhibits strong anisotropy in the biased voltage in the range of -1 to 1 V. In particular, the current reflects the ON state in the a direction but the OFF state in the b direction. In find that the uniaxial strain can significantly improve the electric transport performance and even lead to the negative differential conductance at 10% strain. The unique transport properties of the 2D XAs monolayers can be exploited for potential applications in nanoelectronics. |
| DOI | 10.1021/acs.jpclett.0c03656 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[11604320] ; National Natural Science Foundation of China (NSFC)[51571186] ; National Natural Science Foundation of China (NSFC)[11674321] ; National Natural Science Foundation of China (NSFC)[51801205] ; key research and development program of Anhui province[201904a05020049] ; National Natural Science Foundation of China[51772213] |
| Funding Organization | National Natural Science Foundation of China (NSFC) ; key research and development program of Anhui province ; National Natural Science Foundation of China |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Atomic, Molecular & Chemical |
| WOS ID | WOS:000614318900014 |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.hfcas.ac.cn:8080/handle/334002/120210 |
| Collection | 中国科学院合肥物质科学研究院 |
| Corresponding Author | Xu, Yuehua; Liang, Changhao; Zeng, Xiao Cheng |
| Affiliation | 1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Anhui Key Lab Nanomat & Nanotechnol, Hefei 230031, Peoples R China 3.Changzhou Univ, Sch Microelect & Control Engn, Changzhou 213164, Jiangsu, Peoples R China 4.Univ Nebraska Lincoln, Dept Chem, Lincoln, NE 68588 USA |
| Recommended Citation GB/T 7714 | Li, Pengfei,Wu, Wenjun,Xu, Yuehua,et al. Two-Dimensional IV-V Monolayers with Highly Anisotropic Carrier Mobility and Electric Transport Properties[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2021,12. |
| APA | Li, Pengfei.,Wu, Wenjun.,Xu, Yuehua.,Liu, Jun.,Wu, Shouliang.,...&Zeng, Xiao Cheng.(2021).Two-Dimensional IV-V Monolayers with Highly Anisotropic Carrier Mobility and Electric Transport Properties.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,12. |
| MLA | Li, Pengfei,et al."Two-Dimensional IV-V Monolayers with Highly Anisotropic Carrier Mobility and Electric Transport Properties".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 12(2021). |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment