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The transparent anatase TiO 2 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 TiO 2 thin film is probably as follows:the grain of coating will become grain core later;TiO 2 sol constantly deposited on the surface of TiO 2 grain and formed membrane with increasing of coating cycle times;TiO 2 grain in the film grow steadily.
The transparent anatase TiO 2 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. Increasing the heat-treatment time, the average grain size has no obvious change. The mechanism of grain growth in TiO 2 thin film is probably as follows: the grain of coating will become grain core later; TiO 2 sol constantly deposited on the surface of TiO 2 grain and formed membrane with increasing of coating cycle times; TiO 2 grain in the film grow steadily.