Synthesis of component-controllable monolayer Mo_xW_(1-x)S_2ySe_2(1-y) alloys with continuously tunable band gap and carrier type.

ABSTRACT: Alloying can effectively modify electronic and optical properties of two-dimensional (2D) transition metal dichalcogenides (TMDs). However, efficient and simple methods to synthesize atomically thin TMD alloys need to be further developed. In this study, we synthesized 25 monolayer Mo_xW_(1-x)S_2ySe_2(1-y) alloys by using a new liquid phase edge epitaxy (LPEE) growth method with high controllability. This straightforward approach can be used to obtain monolayer materials and operates on a self-limiting growth mechanism. The process allows the liquid solution to come into contact with the two-dimensional grains only at their edges, resulting in epitaxy confined only along the in-plane direction, which produces exclusively m

SUBMITTER: Li Y 

PROVIDER: S-EPMC10667966 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature