Synthesis of High-Quality Monolayer MoS<sub>2</sub> via a CVD Upstream Deposition Strategy for Charge Capture and Collection
Tao Wang, Jiangtao Guo, Yong Zhang, Wen Yang, Xiaobo Feng, Jing Li, Peizhi Yang
Abstract
Molybdenum disulfide (MoS 2 ) bears great potential in high-performance functional devices because of its tunable band structure, large surface area, and high charge carrier mobility. However, fabricating high-quality monolayer MoS 2 via chemical vapor deposition still faces challenges. Here, an upstream deposition strategy is reported to obtain a high-quality monolayer MoS 2 with high nucleation density and uniformity. Compared with the conventional downstream deposition method, the upstream deposition method presents excellent morphological characteristics. More importantly, MoS 2 prepared by the upstream deposition method shows a stronger charge capture ability at the liquid–solid interface.