Synthesis of flower-like WS2 by chemical vapor deposition |
| |
| Affiliation: | 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. |
| |
| Keywords: | flower-like WS2 chemical vapor deposition (CVD) optical property growth mechanism |
|
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
|
点击此处可从《中国物理 B》下载免费的PDF全文 |
|
