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Proceedings Paper

Multilayer silica optical coatings by sol-gel process
Author(s): Hui Wei; Lin Pang; Hong Xiao; Lurong Guo; Yongkang Guo
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Paper Abstract

As to the deposition of multilayer SiO2 coatings by sol- gel process, in some cases the successive layers have a tendency to be broken during drying. We suggest that microstructure of coating solution and properties of coating surface greatly affect the ability to form multilayer uniform coatings. Factors that affect the ability to form multilayer uniform coatings were studied. These factors were type of catalyst, aging of coating solution, post treatment of previous coatings. In present paper, experimental is described and results are given. Cause of this phenomenon was analyzed. By means of controlling the hydrolysis reaction degree of tetraethyl orthosilicate, thus modifying microstructure of coating solution and properties of coating surface, we succeeded in solving this problem in deposition of multilayer uniform SiO2 coatings.

Paper Details

Date Published: 5 August 1998
PDF: 5 pages
Proc. SPIE 3557, Current Developments in Optical Elements and Manufacturing, (5 August 1998); doi: 10.1117/12.318282
Show Author Affiliations
Hui Wei, Sichuan Univ. (China)
Lin Pang, Sichuan Univ. (China)
Hong Xiao, Sichuan Univ. (China)
Lurong Guo, Sichuan Univ. (China)
Yongkang Guo, Sichuan Univ. (China)


Published in SPIE Proceedings Vol. 3557:
Current Developments in Optical Elements and Manufacturing
Qiming Xin; Robert E. Parks, Editor(s)

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