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- Title
One-Step CVD Synthesis of Few-Layer SnS<sub>2</sub>/MoS<sub>2</sub> Vertical Heterostructures.
- Authors
Zhao, Hongxiao; Yan, Yong; Song, Xiaohui; Dong, Aodi; Su, Jian; Jia, Huimin
- Abstract
Constructing van der Waals (vdW) heterostructures with various-layered two-dimensional (2D) materials is attractive to design various materials and devices. For controllable fabrication of vdW heterostructures, it is very important to make the growth process clear. In this work, SnS2/MoS2 vertical heterostructures were synthesized by the one-step chemical vapor deposition (CVD) method. The bottom MoS2 triangle layers can be partially or completely covered by SnS2 layers. The interlayer charge separation was also observed in the heterostructures by photoluminescence (PL) spectroscopy. The growth mechanism of SnS2/MoS2 vertical heterostructures was also discussed for the first time. MoS2 triangle layers form on the substrates at first and then grow a top layer of SnS2. This study will provide an important and practical method, as a guidance to prepare high-quality vertical heterostructures. SnS2/MoS2 vertical heterostructures have been successfully fabricated by a one-step CVD method. MoS2 was first grown on the SiO2/Si substrates, and single-crystalline SnS2 few layers were then grown on the top of the MoS2. Interlayer charge separation was observed.
- Subjects
HETEROSTRUCTURES; CHEMICAL vapor deposition; PHOTOLUMINESCENCE
- Publication
NANO, 2019, Vol 14, Issue 10, pN.PAG
- ISSN
1793-2920
- Publication type
Article
- DOI
10.1142/S1793292019501297