Substrate-free layer-number identification of two-dimensional materials: A case of Mo${}_{0.5}$W${}_{0.5}$S${}_2$ alloy

Xiao-Fen Qiao, Xiao-Li Li, Xin Zhang +4

Any of two or more two-dimensional (2D) materials with similar properties can be alloyed into a new layered material, namely, 2D alloy. Individual monolayer in 2D alloys are kept t…