Cr-doped TiO2 thin films deposited by RF-sputtering |
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Authors: | Tae Ho Jun |
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Affiliation: | Division of Advanced Materials Engineering, Kongju National Univ., Budaedong, Cheonan City, South Korea |
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Abstract: | Cr-doped TiO2 thin films with different band gaps were prepared. Higher Cr doping was beneficial to the formation of the rutile-TiO2 phase over the anatase-TiO2 phase. A 4.8% Cr-doped thin film indicated a band gap of 2.95 eV, which was lower than the band gap of the rutile-TiO2. Cr doping was accompanied by the formation of not only the rutile-TiO2 phase but also the Cr2O3 phase, lead to the degradation of the hydrophilicity. The TiO2 thin films with the mixed phase were not desirable to improve the hydrophilicity. |
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Keywords: | Thin films Photochemical technology Cr-doped TiO2 Hydrophilicity |
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