CVD synthesis and optical study of bandgap-tunable Sn-doped monolayer molybdenum disulfide

SnCl 2 as an efficient dopant to grow Sn-doped monolayer MoS 2 and it dramatically imposes the growth behavior and the band structure of MoS 2 due to the lattice mismatch between SnS (SnS 2 ) and MoS 2 .