Intrinsic Charge Transport in Stanene: Roles of Bucklings and Electron-Phonon Couplings
文献类型：期刊论文
| 作者 | Nakamura, Yuma1,2; Zhao, Tianqi1; Xi, Jinyang3; Shi, Wen1; Wang, Dong1; Shuai, Zhigang1,4,5 |
| 刊名 | ADVANCED ELECTRONIC MATERIALS
 |
| 出版日期 | 2017-11-01 |
| 卷号 | 3期号:11 |
| 关键词 | 2d Materials Carrier Mobility Calculations Density Functional Perturbation Theory Electron-phonon Couplings Stanene |
| ISSN号 | 2199-160X |
| DOI | 10.1002/aelm.201700157 |
| 英文摘要 | The intrinsic charge transport of stanene is investigated by using density functional theory and density functional perturbation theory coupled with Boltzmann transport equations at the first-principles level. The Wannier interpolation scheme is applied to calculate the charge carrier scatterings with all branches of phonons considering dispersion for the whole range of the first Brillouin zone. The intrinsic electron and hole mobilities are calculated to be (2-3) x 10(3) cm(2) V-1 s(-1) at 300 K. It is found that the intervalley scatterings from the out-of-plane and the transverse acoustic phonon modes dominate the carrier transport process. By contrast, the mobilities obtained by the conventional deformation potential approach are found to be as large as (2-3) x 10(6) cm(2) V-1 s(-1) at 300 K, in which the longitudinal acoustic phonon scattering in the long wavelength limit is assumed to be the dominant scattering mechanism. The inadequacy of the deformation potential approximation in stanene is attributed to the buckling in its honeycomb structure, which originates from the sp(2)-sp(3) orbital hybridization and breaks the planar symmetry. This paper further proposes a strategy to enhance carrier mobilities by suppressing the out-of-plane vibrations through clamping by a substrate. |
| 语种 | 英语 |
| WOS记录号 | WOS:000416047700009 |
| 出版者 | WILEY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/45095]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Dong; Shuai, Zhigang |
| 作者单位 | 1.Tsinghua Univ, MOE Key Lab Organ OptoElect & Mol Engn, Dept Chem, Beijing 100084, Peoples R China 2.Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan 3.Shanghai Univ, Mat Genome Inst, Shanghai 200444, Peoples R China 4.Chinese Acad Sci, Key Lab Organ Solids, BNLMS, Inst Chem, Beijing 100190, Peoples R China 5.Xiamen Univ, Collaborat Innovat Ctr Chem Energy Mat, Xiamen 351005, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nakamura, Yuma,Zhao, Tianqi,Xi, Jinyang,et al. Intrinsic Charge Transport in Stanene: Roles of Bucklings and Electron-Phonon Couplings[J]. ADVANCED ELECTRONIC MATERIALS,2017,3(11). |
| APA | Nakamura, Yuma,Zhao, Tianqi,Xi, Jinyang,Shi, Wen,Wang, Dong,&Shuai, Zhigang.(2017).Intrinsic Charge Transport in Stanene: Roles of Bucklings and Electron-Phonon Couplings.ADVANCED ELECTRONIC MATERIALS,3(11). |
| MLA | Nakamura, Yuma,et al."Intrinsic Charge Transport in Stanene: Roles of Bucklings and Electron-Phonon Couplings".ADVANCED ELECTRONIC MATERIALS 3.11(2017). |
入库方式： OAI收割
来源：化学研究所
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