Epitaxial Growth of Single-Crystalline Monolayer MoS2 by Two-Step Method

作者：Lan Feifei^*; Lai Zhanping; Yan Ruyue; Xu Yongkuan; Cheng Hongjuan; Zhang Song; Chen Jianli; Jia Zhenyu; Wang Zaien; Qi Chengjun

来源：ECS Solid State Letters, 2015, 4(3): P19-P21.

DOI：10.1149/2.0041502ssl

In this paper we report a two step method to grow triangle-shaped single-crystal MoS2 on < 0001 >-oriented sapphire substrate. XPS showed the growth progress is van der walls epitaxial. The largest triangle is about 200 mu m in lateral. Raman and AFM results indicate that the triangles are monolayer. The process is simple and controllable. The sulfidation time has a great influence on the triangle size. With enough sulfidation time, all the MoS2 flakes will be monolyaer. Prolonging the time of sulfidation, the triangles grow larger in size.

• 出版日期2015