Preparation and Characterization of Antireflective Film in $TiO_2-SiO_2$ System by Sol-Gel Method

Sol-Gel법에 의한 $TiO_2-SiO_2$계 저반사 박막의 제조 및 특성

  • 윤태일 (연세대학교 공과대학 세라믹공학과) ;
  • 최세영 (연세대학교 공과대학 세라믹공학과) ;
  • 이용근 (연세대학교 공과대학 세라믹공학과) ;
  • 이재호 (연세대학교 공과대학 세라믹공학과)
  • Published : 1993.09.01

Abstract

TiO2-SiO2 system anti-reflective(AR) film was prepared to decrease reflectance on the glass surface. The experiments were carried out as fellow, 1) preparation & hydrolysis of TiO2-SiO2 system sols. 2) glass dipping, and 3) drying & heat treatment. We investigated the refractive index and thickness of film with viscosity, zeta-potential of sol, sol concentration, withdrawal speed, drying and heat treatment condition. As a result, we prepared good qualitative Quarter-Half-Quarter type anti-reflective film that had minimum, 0.02% and average reflectance, 0.087% in the visible region.

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References

  1. Sol-Gel Technology for Thin Films, Fiber, Preforms, Electronics and Specially Shapes Antireflective Films from Sol-Gel Process R.B. Pettit(et al.)
  2. Pysics of Thin Film v.2 Antireflective Coatings for Optical and Infrared Optical Materials J. Tomax Cox;G. Hass
  3. Sol-gel Science : The Physics and Chemistry of Sol-Gel Processing C.J. Brinker;G.W. Scherer
  4. The Chemistry of Silica R.K. Iler
  5. J. Non-Cryst. Solids v.100 no.288 Structural Transformation of the TiO₂-SiO₂ System Gel During Heat Treatment Cheng. J.J.
  6. Thin Film Optical Filters H.A. Macleod
  7. Applied Optics and Optical Engineering v.1 Interference and Optical Interference Coatings N.J. Kreidl;J.L. Rood;R. Shannon
  8. Applied Optics v.19 no.9 Investigation of Porous Oxides as an Antireflective Coating for Glass Surfaces B.E. Yoldas