Double-layer anti-reflection coating of SiO2–TiO2/SiO2–TiO2-PEG300 with high transmittance and super-hydrophilicity

Yong Shuai Wei; Shao Hui Xu; Li Gang Yuan; Biao Wang; Shu Li Liu; Guang Tao Fei

doi:10.1088/2053-1591/abb499

Materials Research Express (Jan 2020)

Double-layer anti-reflection coating of SiO2–TiO2/SiO2–TiO2-PEG300 with high transmittance and super-hydrophilicity

Yong Shuai Wei,
Shao Hui Xu,
Li Gang Yuan,
Biao Wang,
Shu Li Liu,
Guang Tao Fei

Affiliations

Yong Shuai Wei: Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, PO Box 1129, Hefei 230031, People’s Republic of China; University of Science and Technology of China , Hefei 230026, People’s Republic of China
Shao Hui Xu: ORCiD; Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, PO Box 1129, Hefei 230031, People’s Republic of China
Li Gang Yuan: Science and Technology on Solid-state Laser Laboratory, North China Research Institute of Electro-Optics, Beijing 100015, People’s Republic of China
Biao Wang: ORCiD; Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, PO Box 1129, Hefei 230031, People’s Republic of China
Shu Li Liu: Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, PO Box 1129, Hefei 230031, People’s Republic of China; University of Science and Technology of China , Hefei 230026, People’s Republic of China
Guang Tao Fei: ORCiD; Key Laboratory of Materials Physics and Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, PO Box 1129, Hefei 230031, People’s Republic of China

DOI: https://doi.org/10.1088/2053-1591/abb499
Journal volume & issue: Vol. 7, no. 9
p. 096402

Abstract

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A highly transparent and super-hydrophilic double-layer anti-reflection coating was prepared by a simple and economical sol-gel method based on the glass substrate. The bottom and top layer were respectively made with SiO _2 –TiO _2 sol and SiO _2 –TiO _2 -PEG300 sol. The average transmittance of the substrate coated with the double-layer coating is increased by 7% up to 97.4% in the visible light band, and the peak transmittance reaches 99% at about 550 nm. In addition, double-layer anti-reflection coating shows a good super-hydrophilic self-cleaning performance, and the transmittance of the coating can be restored by simple washing with water. Furthermore, due to the existence of anatase TiO _2 , the composite coating can restore the super-hydrophilicity damaged by dust under UV light.

Published in Materials Research Express

ISSN: 2053-1591 (Online)
Publisher: IOP Publishing
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials; Technology: Chemical technology
Website: https://iopscience.iop.org/journal/2053-1591

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