Preparation of nanometer-structured TiO₂ thin films by Sol-Gel method

Abstract

The transparent anatase TiO₂ nanometer thin films were prepared by the sol-gel method on soda-lime glass. X-ray diffraction, thermal analysis and UV-visible spectrophotometer were used to analyze the formation of the phases. Only increasing the heat-treatment time, the average grain size has no obvious change. The mechanism of grain growth in TiO₂ thin film is probably as follows: the grain of coating will become grain core later; TiO₂ sol constantly deposited on the surface of TiO₂ grain and formed membrane with increasing of coating cycle times; TiO₂ grain in the film grow steadily.

Keywords

TiO₂ / sol-gel method / nanometer thin films

References

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