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http://dx.doi.org/10.3740/MRSK.2014.24.12.689

Fabrication of Hydrophobic Anti-Reflection Coating Film by Using Sol-gel Method  

Kim, Jung-Yup (Korea Institute of Ceramic Engineering and Technology, Optic & Display Materials Team)
Lee, Ji-Sun (Korea Institute of Ceramic Engineering and Technology, Optic & Display Materials Team)
Hwang, Jonghee (Korea Institute of Ceramic Engineering and Technology, Optic & Display Materials Team)
Lim, Tae-Young (Korea Institute of Ceramic Engineering and Technology, Optic & Display Materials Team)
Lee, Mi-Jai (Korea Institute of Ceramic Engineering and Technology, Optic & Display Materials Team)
Hyun, Soong-Keun (Department of Materials Science and Engineering, Inha University)
Kim, Jin-Ho (Korea Institute of Ceramic Engineering and Technology, Optic & Display Materials Team)
Publication Information
Korean Journal of Materials Research / v.24, no.12, 2014 , pp. 689-693 More about this Journal
Abstract
Anti-reflection coating films have used to increase the transmittance of displays and enhance the efficiency of solar cells. Hydrophobic anti-reflection coating films were fabricated on a glass substrate by sol-gel method. To fabricate an anti-reflection film with a high transmittance, poly ethylene glycol (PEG) was added to tetraethyl orthosilicate (TEOS) solution. The content of PEG was changed from 1 to 4 wt% in order to control the morphology, thickness, and refractive index of the $SiO_2$ thin films. The reflectance and transmittance of both sides of the coated thin film fabricated with PEG 4 wt% solution were 0.3% and 99.4% at 500 nm wavelength. The refractive index and thickness of the thin film were n = 1.29 and d = 105 nm. Fluoro alkyl silane (FAS) was used for hydrophobic treatment on the surface of the anti-reflection thin film. The contact angle was increased from $13.2^{\circ}$ to $113.7^{\circ}$ after hydrophobic treatment.
Keywords
anti-reflection film; sol-gel; transmittance; refractive index; hydrophobic treatment;
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