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Citation: Yu Jia-Guo, Zhao Xiu-Jian, Zhao Qing-Nan. Preparation and Characterization of TiO₂ Nnometer Thin Films by Sol-gel Process[J]. Acta Physico-Chimica Sinica, ;2000, 16(09): 792-797. doi: 10.3866/PKU.WHXB20000907 shu

Preparation and Characterization of TiO₂ Nnometer Thin Films by Sol-gel Process

1.
State Key Laboratory of Advanced Technology for Materials and Processing,Wuhan University of Technology,Wuhan 430070

Received Date: 29 December 1999
Available Online: 15 September 2000

Transparent anatase TiO2 nanometer thin films were prepared via the sol- gel process using the TiO2 sol solution on soda- lime glass. XRD patterns of films show that the single anatase phase is precipitated when the thickness of TiO2 films is over 0.46 μ m and there is some orientation effect in (101) direction. However, XRD patterns show almost no peaks of anatase when the thickness is smaller than 0.46 μ m, which is attributed to an insufficient content of titanium dioxide. The transmittance of TiO2 films decreases, the average crystalline size of TiO2 films increase and the absorption edge wavelength of TiO2 films becomes larger with increasing cycle times and film thickness. The chemical compositions of the films were analyzed with X- ray photoelectron spectroscopy (XPS). Experiment results show that besides Ti and O elements, there is a certain amount of residual carbon from the starting organometallic components and a small amount of sodium and calcium ions diffused from the glass substrates.
- Sol-gel process,
- Titania nanometer thin films,
- Preparation and characterization
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沈阳化工大学材料科学与工程学院沈阳 110142

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Preparation and Characterization of TiO2 Nnometer Thin Films by Sol-gel Process

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通讯作者: 陈斌, bchen63@163.com

Preparation and Characterization of TiO₂ Nnometer Thin Films by Sol-gel Process