Additional file 1: of Large-Area WS2 Film with Big Single Domains Grown by Chemical Vapor Deposition

Supplementary material for WS2 film. Figure S1. SEM pictures of WS2 flakes synthesized from different batches. Figure S2. SEM pictures of WS2 films before (a) and after (b) being annealed at 950 °C under Ar atmosphere. (DOCX 2790 kb)