WANG Guang-hua, KONG Jin-chen, LI Xiong-jun, YANG Li-li, ZHAO Hui-qiong, JI Rong-bin. Effects of Sputtering Pressure on Microstructure and Chemical Composition of Amorphous Hg<sub>1-<em>x</em></sub>Cd<sub><em>x</em></sub>Te Films[J]. Chinese Journal of Luminescence, 2012,(11): 1224-1231
WANG Guang-hua, KONG Jin-chen, LI Xiong-jun, YANG Li-li, ZHAO Hui-qiong, JI Rong-bin. Effects of Sputtering Pressure on Microstructure and Chemical Composition of Amorphous Hg<sub>1-<em>x</em></sub>Cd<sub><em>x</em></sub>Te Films[J]. Chinese Journal of Luminescence, 2012,(11): 1224-1231 DOI: 10.3788/fgxb20123311.1224.
Effects of Sputtering Pressure on Microstructure and Chemical Composition of Amorphous Hg1-xCdxTe Films
Mercury cadmium telluride films were prepared by RF magnetron sputtering technique at different sputtering pressure on glass substrate. In experiment
X-ray diffraction (XRD)
atomic force microscopy (AFM) and energy dispersive spectroscopy (EDS) have been used to characterize the microstructure
surface morphology and chemical composition of Hg
1-
x
Cd
x
Te films. Experimental results show that the growth rate
crystal structure
chemical composition content and surface morphology of the Hg
1-
x
Cd
x
Te films have a strong relation to the sputtering pressure. When increased the sputtering pressure
the growth rate of films decreased. When the sputtering pressure was more than 1.1 Pa
the prepared Hg
1-
x
Cd
x
Te film was amorphous
and when the sputtering pressure was controlled at 0.9 Pa
the films exhibited polycrystalline structure. In addition
the surface roughness (RMS and Ra) of Hg
1-
x
Cd
x
Te films gradually decreased with the increasing of sputtering pressure. The chemical composition of films also varing with different sputtering pressure
the Hg and Hg+Cd content in films reache the lowest
but the Cd content gets to the top at 1.1 Pa.
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