Heterogeneous Defect Domains in Single‐Crystalline Hexagonal WS2
- 7 February 2017
- journal article
- research article
- Published by Wiley in Advanced Materials
- Vol. 29 (15)
Abstract
Single-crystalline monolayer hexagonal WS2 is segmented into alternating triangular domains: sulfur-vacancy (SV)-rich and tungsten-vacancy (WV)-rich domains. The WV-rich domain with deep-trap states reveals an electron-dedoping effect, and the electron mobility and photoluminescence are lower than those of the SV-rich domain with shallow-donor states by one order of magnitude. The vacancy-induced strain and doping effects are investigated via Raman and scanning photoelectron microscopy.Keywords
Funding Information
- Ministry of Trade, Industry and Energy
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