期刊
APPLIED SURFACE SCIENCE
卷 257, 期 21, 页码 8755-8761出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2011.03.012
关键词
Chromium oxynitride; Titanium oxynitride; Co-sputtering; Stress; Strain; Contact angle; Optical properties
类别
资金
- AICTE-NDF
- CSIR [03(1148)/09/EMR-II]
- DRDO [ERIP/ER/0800354/M/011125]
The chromium and titanium oxynitride films on glass substrate were deposited by using reactive RF magnetron sputtering in the present work. The structural and optical properties of the chromium and titanium oxynitride films as a function of power variations are investigated. The chromium oxynitride films are crystalline even at low power of Cr target (>= 60 W) but the titanium oxynitride films are amorphous at low target power of Ti target (<= 90 W) as observed from glancing incidence X-ray diffraction (GIXRD) patterns. The residual stress and strain of the chromium oxynitride films are calculated by sin(2) psi method, as the average crystallite size decreases with the increase in sputtering power of the Cr target, higher stress and strain values are observed. The chromium oxynitride films changes from hydrophilic to hydrophobic with the increase of contact angle value from 86.4 degrees. to 94.1 degrees., but the deposited titanium oxynitride films are hydrophilic as observed from contact angle measurements. The changes in surface energy were calculated using contact angle measurements to substantiate the hydrophobic properties of the films. UV-vis and NIR spectrophotometer were used to obtain the transmission and absorption spectra, and the later was used for determining band gap values of the films, respectively. The refractive index of chromium and titanium oxynitride films increases with film packing density due to formation of crystalline chromium and titanium oxynitride films with the gradual rise in deposition rate as a result of increase in target powers. (C) 2011 Elsevier B. V. All rights reserved.
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