Papers by Keyword: Titanium Oxide Thin Films

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Authors: Noor Sakinah Khalid, Siti Harwani Ishak, Mohd Khairul Ahmad
Abstract: Titanium oxide (TiO2) thin films were deposited onto glass substrates by spray pyrolysis method. The thin films were deposited at three different annealing time; 1, 5 and 10 hours at 400°C. The structural and electrical properties were characterized using FESEM and I-V characteristic. Polycrystalline thin film with anatase crystal structure, as evidenced from X-ray diffraction pattern, was obtained with major reflection along (101). Electrical properties have been studied by means of electrical resistivity. The dark resistivity had been measured as a function of the film thickness, d. The resistivity of samples had been found to decrease with decreasing thickness. Thus, TiO2 is one of the most promising candidates for relatively low cost, simple manufacture for solar cell.
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Authors: Fan Xiao, Kanji Tsuru, Satoshi Hayakawa, Akiyoshi Osaka
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Authors: X.L. Jia, Y. Wang, R.S. Xin, Quan Li Jia, Hai Jun Zhang
Abstract: Rare-earth doped porous nanocrystalline TiO2 films were prepared via sol-gel method. The effect of preparation conditions on the properties of the resulting thin films, such as structure, surface topography and photocatalysis properties was analyzed. It indicated that appropriate doping of rare-earth element improves the photocatalysis ability of the thin titanium oxide films. The thin titanium oxide films have good photocatalysis properties in visible light region because of the red shift of energy level. It also revealed that uni-doped of cobalt is better than that of cobalt and lanthanum, while co-doping of cerium, cobalt and lanthanum may cause the best photocatalysis properties.
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