Selective CW Laser Synthesis of MoS and Mixture of MoS and MoO from (NH)MoS Film.

Very recently, the synthesis of 2D MoS and WS through pulsed laser-directed thermolysis can achieve wafer-scale and large-area structures, in ambient conditions. In this paper, we report the synthesis of MoS and MoS oxides from (NH)MoS film using a visible continuous-wave (CW) laser at 532 nm, instead of the infrared pulsed laser for the laser-directed thermolysis. The (NH)MoS film is prepared by dissolving its crystal powder in DI water, sonicating the solution, and dip-coating onto a glass slide.