| Y-TiO2薄膜的超声波—溶胶—凝胶法制备及表征（英文） |
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| 引用本文： | 许文苑,孟丽娜,杨婥,罗明标,黄国林.Y-TiO2薄膜的超声波—溶胶—凝胶法制备及表征（英文）[J].稀有金属材料与工程,2011(Z1):399-401. |
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| 作者姓名： | 许文苑 孟丽娜 杨婥 罗明标 黄国林 |
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| 作者单位： | 东华理工大学放射性地质与勘探技术国防重点学科实验室;东华理工大学核资源与环境教育部重点实验室 |
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| 基金项目： | National Natural Science Foundation of China(2009GZH0002,2009GZH0008);Jiangxi Provincial Key Program for Popularization of S&T Achievements(2009CCB00800) |
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| 摘 要： | 提出了一种制备Y掺杂TiO2薄膜的新方法。采用溶胶-凝胶法结合超声技术,以钛酸四丁酯为前驱体制备Y-TiO2溶胶,分别采用XRD、SEM、FT-IR和UV-vis对样品的组成与结构进行了表征。结果表明:Y3+掺杂可较好地抑制TiO2由锐钛矿相向金红石相的相变,提高了相变温度,抑制了晶粒生长。Y掺杂TiO2薄膜的晶型结构为锐钛矿相结构,晶型为锐钛矿相,粒度为6~16nm。Y3+掺杂能引起TiO2光学吸收边的"红移",带隙变窄,红移程度随掺杂量增加而增大,随温度升高而减小。薄膜表面平整,厚度约80nm。
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| 关 键 词： | 超声波-溶胶-凝胶法 Y3+掺杂 TiO2薄膜 表征 |
Preparation and Characterization of Y3+ Doped TiO2 Thin Films Derived by Innovative Ultrasonic-Sol-Gel Method |
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| Xu Wenyuan,Meng Lina,Yang Chuo,Luo Mingbiao,Huang Guolin.Preparation and Characterization of Y3+ Doped TiO2 Thin Films Derived by Innovative Ultrasonic-Sol-Gel Method[J].Rare Metal Materials and Engineering,2011(Z1):399-401. |
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| Authors: | Xu Wenyuan Meng Lina Yang Chuo Luo Mingbiao Huang Guolin |
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| Affiliation: | 1Key Laboratory of Radioactive Geology and Exploration Technology Fundamental Science for National Defense,East China Institute of Technology, Fuzhou 344000, China; 2Key Laboratory of Nuclear Resources and Environment (East China Institute of Technology), Ministry of Education, Nanchang 330013, China |
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| Abstract: | An innovative ultrasonic-sol-gel method was put forward to prepare Y3+ doped TiO2 films. Y-TiO2 sol was prepared by a sol-gel process under ultrasonic condition using tetrabutyl titanate as the precursor. The composition, structure and performance of the obtained material were characterized by XRD, SEM, FT-IR and UV-vis. Results indicate that Y3+ doping can inhibit the phase transformation of TiO2 from anatase to rutile and increase phase-transition temperature and restrain grain growth. The crystalline phase composition of Y3+ doped TiO2 films is anatase, and the particle size is from 6 to 16 nm. In addition, Y3+ doping can bring the red-shift of the optical absorption edge of TiO2, and the degree of red shift is increased with the increase of Y3+ doping amount and decreased with the rise of temperature. Thin film thickness is about 80 nm with a smooth surface. |
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| Keywords: | ultrasonic-sol-gel method Y3+doping TiO2 films characterization |
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