Substrate dependent terahertz response of monolayer WS2
文献类型：期刊论文
| 作者 | Dong, H. M.1; Tao, Z. H.1; Li, L. L.2,3,4; Huang, F.5; Xu, W.6,7,8; Peeters, F. M.4,7,8 |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2020-05-18 |
| 卷号 | 116 |
| ISSN号 | 0003-6951 |
| DOI | 10.1063/5.0006617 |
| 通讯作者 | Xu, W.(wenxu_issp@aliyun.com) |
| 英文摘要 | We investigate experimentally the terahertz (THz) optoelectronic properties of monolayer (ML) tungsten disulfide (WS2) placed on different substrates using THz time-domain spectroscopy (TDS). We find that the THz optical response of n-type ML WS2 depends sensitively on the choice of the substrate. This dependence is found to be a consequence of substrate induced charge transfer, extra scattering centers, and electronic localization. Through fitting the experimental results with the Drude-Smith formula, we can determine the key sample parameters (e.g., the electronic relaxation time, electron density, and electronic localization factor) of ML WS2 on different substrates. The temperature dependence of these parameters is examined. Our results show that the THz TDS technique is an efficient non-contact method that can be utilized to characterize and investigate the optoelectronic properties of nano-devices based on ML WS2. |
| WOS关键词 | GRAPHENE |
| 资助项目 | Fundamental Research Funds for the Central Universities[2018GF09] ; National Natural Science foundation of China[U1930116] ; National Natural Science foundation of China[11574319] |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000536282300001 |
| 出版者 | AMER INST PHYSICS |
| 资助机构 | Fundamental Research Funds for the Central Universities ; National Natural Science foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/103195]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Xu, W. |
| 作者单位 | 1.China Univ Min & Technol, Sch Mat Sci & Phys, Xuzhou 221116, Jiangsu, Peoples R China 2.Univ Duisburg Essen, Dept Phys, Lotharstr 1, D-47057 Duisburg, Germany 3.Univ Duisburg Essen, Ctr Nanointegrat, Lotharstr 1, D-47057 Duisburg, Germany 4.Univ Antwerp, Dept Phys, Groenenborgerlaan 171, B-2020 Antwerp, Belgium 5.China Univ Min & Technol, Low Carbon Energy Inst, Xuzhou 221116, Jiangsu, Peoples R China 6.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 7.Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China 8.Yunnan Univ, Yunnan Key Lab Quantum Informat, Kunming 650091, Yunnan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, H. M.,Tao, Z. H.,Li, L. L.,et al. Substrate dependent terahertz response of monolayer WS2[J]. APPLIED PHYSICS LETTERS,2020,116. |
| APA | Dong, H. M.,Tao, Z. H.,Li, L. L.,Huang, F.,Xu, W.,&Peeters, F. M..(2020).Substrate dependent terahertz response of monolayer WS2.APPLIED PHYSICS LETTERS,116. |
| MLA | Dong, H. M.,et al."Substrate dependent terahertz response of monolayer WS2".APPLIED PHYSICS LETTERS 116(2020). |
入库方式： OAI收割
来源：合肥物质科学研究院
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