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http://dx.doi.org/10.6111/JKCGCT.2011.21.2.065

Characterizations of Characterizations of Tio2 thin films with atmosphere control of the RF magnetron sputtering  

Park, Ju-Hoon (Department of Medical Engineering, Nambu University)
Kim, Bong-Soo (Hankuk Carbon)
Kim, Byung-Hoon (ReSEAT Program, Korea Institute of Science and Technology Information)
Abstract
The $Tio_2$ films were prepared on glass, silicon and quartz substrate at different temperature by radio frequency reactive magnetron sputtering under different flow ratios of Ar and O2 gases. The films were characterized by X-ray diffractometer (XRD), scanning electron microscope (SEM), atomic force microscope (AFM) and UV-VIS spectrophotometer. Only the anatase phase was observed in films and their diffaction peaks increased with temprature of substrate. The size of crystallites decreased with higher concentration of oxygen. Refractive index and optical absorption of thin films decreased with higher concentration of oxygen. The thin films which have good transmittance spectra and smooth surface, deposited in the sputtering ambient with 10 % of $O_2$ at the temperature from $400{\circ}C$ to $300{\circ}C$.
Keywords
$Tio_2$; RF magnetron sputtering; Working gas ratio;
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