中国物理B ›› 2019, Vol. 28 ›› Issue (11): 118101-118101.doi: 10.1088/1674-1056/ab457c

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Chemical vapor deposition growth of crystal monolayer SnS2 with NaCl-assistant

Xiao-Xu Liu(刘晓旭), Da-Wei He(何大伟), Jia-Qi He(何家琪), Yong-Sheng Wang(王永生), Ming Fu(富鸣)   

  1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiao Tong University, Beijing 100044, China
  • 收稿日期:2019-06-24 修回日期:2019-09-12 出版日期:2019-11-05 发布日期:2019-11-05
  • 通讯作者: Da-Wei He E-mail:dwhe@bjtu.edu.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant No. 2016YFA0202302), the National Natural Science Foundation of China (Grant Nos. 61527817, 61875236, 61905010, and 61975007), and the Overseas Expertise Introduction Center for Discipline Innovation, 111 Center, China.

Chemical vapor deposition growth of crystal monolayer SnS2 with NaCl-assistant

Xiao-Xu Liu(刘晓旭), Da-Wei He(何大伟), Jia-Qi He(何家琪), Yong-Sheng Wang(王永生), Ming Fu(富鸣)   

  1. Key Laboratory of Luminescence and Optical Information, Ministry of Education, Institute of Optoelectronic Technology, Beijing Jiao Tong University, Beijing 100044, China
  • Received:2019-06-24 Revised:2019-09-12 Online:2019-11-05 Published:2019-11-05
  • Contact: Da-Wei He E-mail:dwhe@bjtu.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant No. 2016YFA0202302), the National Natural Science Foundation of China (Grant Nos. 61527817, 61875236, 61905010, and 61975007), and the Overseas Expertise Introduction Center for Discipline Innovation, 111 Center, China.

摘要: As an important member of the two-dimensional layers of metal dichalcogenides family, the two-dimensional (2D) group IV metal chalcogenides (GIVMCs) have been attracting intensive attention. However, the growth of monolayer tin disulfide (SnS2) remains a great challenge contrasted to transition metal dichalcogenides, which have been studied quite maturely. Till date, there have been scant reports on the growth of large-scale and large-size monolayer SnS2. Here, we successfully synthesized monolayer SnS2 crystal on SiO2/Si substrates via NaCl-assisted CVD and the edge can be as long as 80 μm. Optical microscope, Raman spectroscopy, x-ray diffraction, atomic force microscopy (AFM), and energy-dispersion x-ray (EDX) were performed respectively to investigate the morphology, crystallographic structure, and optical property of the 2D SnS2 nanosheets. In addition, we discussed the growing mechanism of the NaCl-assisted CVD method.

关键词: group IV metal chalcogenides, tin disulfide, two-dimensional materials, chemical vapor deposition

Abstract: As an important member of the two-dimensional layers of metal dichalcogenides family, the two-dimensional (2D) group IV metal chalcogenides (GIVMCs) have been attracting intensive attention. However, the growth of monolayer tin disulfide (SnS2) remains a great challenge contrasted to transition metal dichalcogenides, which have been studied quite maturely. Till date, there have been scant reports on the growth of large-scale and large-size monolayer SnS2. Here, we successfully synthesized monolayer SnS2 crystal on SiO2/Si substrates via NaCl-assisted CVD and the edge can be as long as 80 μm. Optical microscope, Raman spectroscopy, x-ray diffraction, atomic force microscopy (AFM), and energy-dispersion x-ray (EDX) were performed respectively to investigate the morphology, crystallographic structure, and optical property of the 2D SnS2 nanosheets. In addition, we discussed the growing mechanism of the NaCl-assisted CVD method.

Key words: group IV metal chalcogenides, tin disulfide, two-dimensional materials, chemical vapor deposition

中图分类号:  (Nanoscale materials and structures: fabrication and characterization)

  • 81.07.-b
81.15.Gh (Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.))