期刊
SUPERLATTICES AND MICROSTRUCTURES
卷 120, 期 -, 页码 235-240出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.spmi.2018.05.049
关键词
Monolayer MoS2; Diverse substrates; Optical property; Lattice mismatch
资金
- National Natural Science Foundation of China [11604124, 61604080, 61504050]
- Natural Science Foundation of Jiangsu Province [BK20150158, BK20160883, BM2014402]
- China Postdoctoral Science Foundation [2017M621623]
- Fundamental Research Funds for Central Universities [JUSRP51628B, JUSRP51517, JUSRP51716A]
- national first-class discipline program of Food Science and Technology [JUFSTR20180302]
- University Science Research Project of Jiangsu Province [16KJB140011]
- Doctoral Starting Foundation of Wuxi Institute of Technology [30593117033]
Monolayer MoS2 grown on sapphire, Si, and GaN substrates by chemical vapor deposition (CVD) method under the same growth conditions have been demonstrated, and the effects of diverse substrates on the morphological and optical properties of monolayer MoS2 are systematically compared. The variations of the PL and Raman spectra of monolayer MoS2 on the three substrates are mainly attributed to the different lattice mismatch and thermal conductivity between MoS2 and the substrates. Moreover, uniform contrast of the PL and Raman intensity mappings suggest that the as-grown monolayer MoS2 on diverse substrates achieve high quality and uniformity. Accordingly, the ability to grow monolayer MoS2 with high quality to surface corrugation on diverse substrates would open a route toward the synthesis of heteroand composite structures.
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