Published in
Royal Society of Chemistry, Nanoscale, 19(5), p. 8904-8908, 2013
DOI: 10.1039/c3nr03101b
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Layer-by-layer thinning of MoS2by thermal annealing
Journal article published in 2013 by
Xin Lu,
Muhammad Iqbal Bakti Utama 
,
Jun Zhang,
Yanyuan Zhao,
Qihua Xiong
,
Jun Zhang,
Yanyuan Zhao,
Qihua Xiong
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Abstract
By thermal annealing, few-layer MoS2 flakes can be thinned down. In one hour, the upper layer is peeled off due to sublimation. Eventually, monolayer MoS2 is achieved. We have characterized the process by optical contrast, Raman spectroscopy and atomic force microscopy (AFM), and observed a mixture of surfaces of N and N − 1 layers.