| Autor: |
Chengzhai Lv, Jiung Cho, Wenjie Yan, Miri Choi, Tanja Stimpel-Lindner, Cormac Ó Coileáin, Jian Leng, Han-Chun Wu, Yanfeng Zhao, Juncheng Li, Conor P. Cullen, Georg S. Duesberg, Duan Zhang, Sunil K. Arora, Yanhui Lv, Byong Sun Chun |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
RSC Advances. 10:1580-1587 |
| ISSN: |
2046-2069 |
| DOI: |
10.1039/c9ra09103c |
| Popis: |
Monolayer MoSe2 is a transition metal dichalcogenide with a narrow bandgap, high optical absorbance and large spin-splitting energy, giving it great promise for applications in the field of optoelectronics. Producing monolayer MoSe2 films in a reliable and scalable manner is still a challenging task as conventional chemical vapor deposition (CVD) or exfoliation based techniques are limited due to the small domains/nanosheet sizes obtained. Here, based on NaCl assisted CVD, we demonstrate the simple and stable synthesis of sub-millimeter size single-crystal MoSe2 monolayers with mobilities ranging from 38 to 8 cm2 V−1 s−1. The average mobility is 12 cm2 V−1 s−1. We further determine that the optical responsivity of monolayer MoSe2 is 42 mA W−1, with an external quantum efficiency of 8.22%. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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