Synthesis of flower-like WS2 by chemical vapor deposition
Jin-Zi Ding(丁金姿)1, Wei Ren(任卫)2,†, Ai-Ling Feng(冯爱玲)1,‡, Yao Wang(王垚)2, Hao-Sen Qiao(乔浩森)2, Yu-Xin Jia(贾煜欣)2, Shuang-Xiong Ma(马双雄)2, and Bo-Yu Zhang(张博宇)2
1 Institute of Physics & Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji 721016, China; 2 School of Science, Xi'an University of Posts & Telecommunications, Xi'an 710121, China
Abstract Flower-like tungsten disulfide (WS2) with a diameter of 5-10 μm is prepared by chemical vapor deposition (CVD). Scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), Raman spectroscopy, and ultraviolet-visible (UV-vis) spectroscopy are used to characterize its morphological and optical properties, and its growth mechanism is discussed. The key factors for the formation of flower-like WS2 are determined. Firstly, the cooling process causes the generation of nucleation dislocations, and then the "leaf" growth of flower-like WS2 is achieved by increasing the temperature.
Fund: Project supported by the Joint Research Funds of Department of Science & Technology of Shaanxi Province and Northwestern Polytechnical University (Grant No. 2020GXLH-Z-029).
Jin-Zi Ding(丁金姿), Wei Ren(任卫), Ai-Ling Feng(冯爱玲), Yao Wang(王垚), Hao-Sen Qiao(乔浩森), Yu-Xin Jia(贾煜欣), Shuang-Xiong Ma(马双雄), and Bo-Yu Zhang(张博宇) Synthesis of flower-like WS2 by chemical vapor deposition 2021 Chin. Phys. B 30 126201
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