Influence of the temperature of preparation process on refractive index of sol-gel matrices

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作者：

机构：

[1] Lechna-Marczyn´ska, M.

[2] Podbielska, H.

来源：

Lechna-Marczyn´ska, M. | 2001年 / Technical University of Wroclaw卷 / 31期

关键词：

Condensation reactions - Film preparation - Hydrolysis - Optical properties - Refractive index - Refractometers - Thermal effects - Thin films;

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摘要：

The preparation of sol-gel materials in the form of bulks and thin films at different temperatures is described. The procedure involves running the reaction at 50°C and 90°C in an open vessel. Such an approach enables acceleration of hydrolysis and condensation reactions. This procedure yields crack-free sol-gel glasses. The changes in refractive index of sol-gel materials were studied by using Pulrich refractometer. The experimental data indicates significant differences in the optical properties of sol-gel glasses, depending on the temperature during the preparation. The samples show normal dispersion, whereas a higher refractive index was stated for films prepared at a higher temperature.

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