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
       

Electrical and photoelectrical properties of the WS2 lateral p–n homojunction. (a) Structure diagram of the device. Inset is the schematic of the device. (b), (c) Output characteristic curves of the device in (b) linear and (c) logarithmic scale at VG = 0 V. (d) Dynamic photoresponse of the device.