Work

Sol-gel preparation of self-cleaning SiO2-TiO2/SiO2-TiO2 double-layer antireflective coating for solar glass

Year: 2017

Type: article

Abstract: Self-cleaning SiO 2 -TiO 2 /SiO 2 -TiO 2 double-layer antireflective (AR) coating is prepared by sol-gel process. SiO 2 sol is prepared by using tetraethyl orthosilicate (TEOS) as precursor and ammonia as catalyst, while TiO 2 sol was prepared by using tetrabutyl orthotitanate (TBOT) as precursor and hydrochloric acid as catalyst. The effect of TiO 2 content on refractive index, abrasion-resistance and photo-catalytic activity of SiO 2 -TiO 2 hybrid thin films or powders is systematically investigated. It is found that the refractive index of SiO 2 -TiO 2 hybrid thin films increases gradually from 1.18 to 1.53 as the weight ratio of TiO 2 to SiO 2 increased from 0 to 1.0. The SiO 2 -TiO 2 hybrid thin film and powder possesses good abrasion-resistance and photo-catalytic activity, respectively, as the weight ratio of TiO 2 to SiO 2 is 0.4. The degradation degree of Rhodamine B by SiO 2 -TiO 2 hybrid powder is 88.3%. Finally, SiO 2 -TiO 2 /SiO 2 -TiO 2 double-layer AR coating with high transmittance, abrasion-resistance and self-cleaning property is realized.

Source: Results in Physics

DOI: 10.1016/j.rinp.2017.12.058

Authors: Wensheng Lin, Jiaxian Zheng, Lianghong Yan, Xinxiang Zhang

Institutions: Fujian Agriculture and Forestry University, China Academy of Engineering Physics, Laser Fusion Research Center

Language: English

Topic: Optical Coatings and Gratings

Subfield: Surfaces, Coatings and Films

Field: Materials Science

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,920

Funders: Natural Science Foundation of Fujian Province, PetroChina Innovation Foundation