Growth of rutile TiO<sub>2sub> nanorods on TiO<sub>2sub> seed layer deposited by electron beam evaporation

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• 作者：V. Tamilselvan ; ^{tamilant@gmail.com} ; D. Yuvaraj ; R. Rakesh Kumar ; K. Narasimha Rao
• 关键词：Titanium dioxide ; Hydrothermal crystal growth ; UV absorption ; Hydrophobic property
• 刊名：Applied Surface Science
• 出版年：2012
• 期刊代码：6_01694332
• 类别：ms
• 出版时间：1 March, 2012
• 卷：258
• 期：10
• 页码：4283-4287
• 文件大小：476 K

摘要

Dense rutile TiO<sub>2sub> nanorods were grown on anatase TiO<sub>2sub> seed layer coated glass substrate by solution technique. The crystalline nature of nanorods has confirmed by transmission electron microscopy. The band gap of the TiO<sub>2sub> seed layer and nanorods were calculated using the UV-vis absorption spectrum and the band gap value of the anatase seed layer and rutile nanorods were 3.39 eV and 3.09 eV respectively. Water contact angle measurements were also made and showed that the contact angle of rutile nanorods was (134掳) larger than the seed layer contact angle (93掳). The RMS surface roughness of the TiO<sub>2sub> seed layer (0.384 nm) and nanorods film (18.5 nm) were measured by an atomic force microscope and correlated with their contact angle values.