Interface chemistry of CdZnTe films studied by a peel-off approach
Interface chemistry of CdZnTe films studied by a peel-off approach
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通过剥离方法研究 CdZnTe 薄膜的界面化学
DOI:
10.1016/j.apsusc.2016.01.245
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发表时间:
2016-12
影响因子:
6.7
通讯作者:
Wang Linjun
中科院分区:
文献类型:
--
作者:
Tao Jun;Xu Haitao;Zhang Yuelu;Ji Huanhuan;Xu Run;Huang Jian;Zhang Jijun;Liang Xiaoyan;Tang Ke;Wang Linjun
CdZnTe films with thickness above 50 μm were deposited at temperatures of 200–500 °C by Close Space Sublimation method. A peel-off approach has been adopted to study the interface chemistry of CdZnTe thick films. For all the CdZnTe films, the scanning electron microscopy images show the small and round-like grains formed at interface in contrast to the large ordered grains at surface. For CdZnTe films grown at a low substrate temperature of 200 °C, the interface layer between CdZnTe and substrate is mixed with Te and CdTe, as evidenced by X-ray diffraction, Raman and X-ray photoelectron spectroscopy results. The thickness of the interface layer can be estimated to be 84 nm by depth profile using X-ray photoelectron spectroscopy. In contrast, a thin interface layer less than 14 nm is found at a high substrate temperature of 500 °C. The limited reaction of Te2and Cd (Zn) to CdZnTe at a low growth temperature is responsible for the formation of the thick interface layer and a slow deposition rate at the nucleation stage.
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10.1016/j.nima.2006.01.110
发表时间:
2006-07
影响因子:
1.4
作者:
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Applied Physics A: Materials Science and Processing
影响因子:
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