期刊名称:International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN:2347-6710
电子版ISSN:2319-8753
出版年度:2013
卷号:2
期号:9
页码:5049
出版社:S&S Publications
摘要:The study was carried out by the preparing of SrTiO3 thin films and studying the effect of annealingtemperatures at (723, 773, 823) k for 2h on structural and optical properties. The SrTiO3 thin films have been preparedby pulse laser deposition in a vacuum condition at about (4×10-2) mbar. X-ray diffraction pattern of the films confirmedthat all the grown films have polycrystalline structure rather increase in average grain size with increase temperaturefrom7.03nm to9.25nm. The optical measurements show that the SrTiO3 thin films have direct energy gap which showthat energy gap decrease from 3.7eV to 3.4 eV with increasing the annealing temperature, the transmittance decreasewith increasing temperature.