Comparison of hydrogen sulfide gas and sulfur powder for synthesis of molybdenum disulfide nanosheets

Title
Comparison of hydrogen sulfide gas and sulfur powder for synthesis of molybdenum disulfide nanosheets
Author
심상완
Keywords
Hydrogen sulfide; Sulfur powder; Transition metal dichalcogenides (TMDC); 2D nanosheet; Selectable area growth
Issue Date
2016-07
Publisher
ELSEVIER SCIENCE BV
Citation
CURRENT APPLIED PHYSICS, v. 16, No. 7, Page. 691-695
Abstract
Layered transition metal dichalcogenides (TMDCs) have the potential to be used as an alternative to graphene in nano applications, because of their unique opto-electric properties. However, the large-scale synthesis of TMDCs has not been thoroughly investigated with different sulfurization agents, nor have the effects of defects and vacancies on such synthesis been determined. This study therefore looks at the synthesis of MoS2 nanosheets from a thin Mo film to compare the effects of using H2S gas or sulfur powder as the sulfurization agent. In either case, a four-layered nanosheet is obtained; however, the good stoichiometry of MoS2, smallest defects, and fewest vacancies are obtained using H2S. (C) 2016 Elsevier B.V. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S1567173916300670http://repository.hanyang.ac.kr/handle/20.500.11754/100534
ISSN
1567-1739; 1878-1675
DOI
10.1016/j.cap.2016.03.022
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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