Synthesis of flower-like WS2 by chemical vapor deposition

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 optica...

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Bibliographic Details
Published in:中国物理B（英文版） 2021-12, Vol.30 (12), p.591-597
Main Authors: Jin-Zi Ding, Wei Ren, Ai-Ling Feng, Yao Wang, Hao-Sen Qiao, Yu-Xin Jia, Shuang-Xiong Ma, Bo-Yu Zhang
Format: Article
Language:English
Online Access:Get full text
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Summary: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 dis-cussed.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 temper-ature.
ISSN:1674-1056
DOI:10.1088/1674-1056/ac0524