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Influence of aging and annealing on the properties of silica films produced with sol-gel method

Karasinski P.

Optica Applicata

2006

Vol. 36, nr 2-3

389-399

The paper presents the results of investigations involving the influence of aging and annealing of the sol films on the final parameters of the obtained silica films. Both technological process and measurement method were described. The changes of refractive index were presented as well as the changes of film thickness of sols deposited on glass substrates during their aging under ambient conditions. The influence of the annealing process of films on their final parameters was examined. Silica films on glass substrates were deposited using dip coating method.

Influence of technological parameters on the properties os sol-gel silica films

Karasiński P.

Optica Applicata

2005

Vol. 35, nr 1

117-128

The paper presents the influence of selected technological parameters on the properties of silica films produced in sol-gel processes using the dip-coating method. The influence of water content and catalyst content was investigated as well as the influence og aging time of sols. It was demonstrated that the conditions of film deposition and the content of catalyst have a great influence on the thickness of the films produced. The greatest influence on the refractive index is exerted by molar ratio TEOS:H2O. Together with the rise of aging time of the sol its properties are changing, and the changes depend on pH.