Controllable p-type doping of 2D MoS₂<i>via</i> Sodium intercalation for optoelectronics

We synthesized high-quality MoS 2 flakes via the NaOH assisted CVD method. The morphological evolution of MoS 2 flakes was investigated at different growth temperatures, and high-quality MoS 2 were achieved with a photoresponsivity of 4.2 A W −1 and a specific detectivity of 8.1 × 10 8 Jones.