Study on Antireflection of TiO2-SiO2/SiO2 Double-Layer Films Prepared by Sol-Gel Method

Jing Ying Lu; Qing Nan Zhao; Shao Hong Hou; Yu Hong Dong

doi:10.4028/www.scientific.net/AMR.591-593.1012

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 591-593Study on Antireflection of TiO2-SiO2/SiO2...

Study on Antireflection of TiO₂-SiO₂/SiO₂ Double-Layer Films Prepared by Sol-Gel Method

Abstract:

TiO2-SiO2 double-layer films are prepared on glass substrates by sol-gel method and dip dipping method. The effect of aging time, heat treatment temperature and molar content of TiO2 for the optical properties of the films have been studied on this paper. And on this basis TiO2-SiO2/SiO2 double-layer films have been prepared as well as the transmittances in the visible range of it have been studied. The results of this paper show that the transmittances of TiO2-SiO2 films in the visible range are reduced with the increasing of sol aging time, molar content of TiO2 and heat treatment temperature; The TiO2-SiO2/SiO2 double-layer films prepared on this basis have antireflective effect, and the average transmittances in the visible range of it are increased nearly 4%-5% more than glass substrate and the transmittance peak reached 100%; the surfaces of the films are smooth; in addition, the cut sides of UV of TiO2-SiO2/SiO2 double-layer films are moved to infrared with the increase of TiO2 content.