Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Fabrication of Hydrophobic Anti-Reflection Coating Film by Using Sol-gel Method

Sol-gel 법을 이용한 내오염 반사방지 코팅막 제조

  • 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)
  • 김정엽 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 이지선 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 황종희 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 임태영 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 이미재 (한국세라믹기술원 광.디스플레이소재팀) ;
  • 현승균 (인하대학교 금속공학과) ;
  • 김진호 (한국세라믹기술원 광.디스플레이소재팀)
  • Received : 2014.09.29
  • Accepted : 2014.11.21
  • Published : 2014.12.27
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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.

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References

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