Efficient doping modulation of monolayer WS2 for optoelectronic applications*

Project supported by the National Natural Science Foundation of China (Grant No. 21405109) and Seed Foundation of State Key Laboratory of Precision Measurement Technology and Instruments, China (Grant No. 1710).

Ma Xinli, Zhang Rongjie, An Chunhua, Wu Sen, Hu Xiaodong, Liu Jing
       

Growth of monolayer WS2. (a) Experimental set-up of the CVD furnace. (b) Temperature variation curves of WO3 and S during CVD growth. (c), (d) Optical images of the as-grown WS2. (e) Molecular structure of the monolayer WS2.