Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
권호 표지
DOI QR코드

DOI QR Code

IR Cut-off Filter Made of CeO2 and SiO2 Thin Films Coated on PMMA Substrate

PMMA 기판에 CeO2와 SiO2를 코팅하여 제작한 적외선 차단필터

  • Yu, Yeon-Serk (Department of Laser and Optical Information Engineering, Cheongju University) ;
  • Choi, Sang-Serk (Department of Laser and Optical Information Engineering, Cheongju University)
  • 유연석 (청주대학교 레이저 광정보공학과) ;
  • 최상석 (청주대학교 레이저 광정보공학과)
  • Published : 2006.10.25
Download PDF
⟨ Previous Next ⟩

Abstract

Generally, IR cut-off filters for mobile phone is coated on the glass substrate at high temperature(above $300^{\circ}C$). In this work, we prepared IR cut-off filters on the poly(methyl methacrylate)(PMMA) substrates at low temperature(about $70^{\circ}C$ ). using the $CeO_2\;and\;SiO_2$ coatings by physical vapor deposition. The surface energies of coated and uncoated PMMA, and adhesive properties of IR cut-off filters coatings were examined using contact angle measurements. We demonstrate the improve of mobile phone optical system using these results.

일반적으로 모바일 폰용 적외선 차단 필터는 유리기판위에 $300^{\circ}C$ 이상의 고온에서 코팅된다. 본 연구에서는 PMMA(Poly methyl methacrylate)기판에 저온에서 $CeO_2$와 $SiO_2$를 사용하여 적외선 차단 필터를 코팅하였다. 저온 코팅된 필터의 접촉각을 측정하여 박막의 부착상태를 시험하였고, 적외선 차단 필터에 대한 시험 및 설계 결과를 모바일 폰용 광학계 개선에 적용하여 보았다.

Keywords

References

  1. D. P. Gosain, T. Noguchi, S. Usui, Japaneses Journal of Applied Physies. Part2. 39(3A-B), L 179-81(2000) https://doi.org/10.1143/JJAP.39.L179
  2. Cheng-chung Lee and Jin-Cherng Hsu, 'Optical coatings on polymethyl methacrylate and polycarbonate', Thin Sold Films, 295, 122-124(1997) https://doi.org/10.1016/S0040-6090(96)09168-7
  3. M. Walker, K. M. Baumgartner, J. Feichtinger, M. Kaiser, A. Schulz, and E. Rauchle, Vacuum, (2000)
  4. D. Hegermann, U. Vohrer, C. Oehr. and R. Riedel, Surf. Coat. Technol., (1999)
  5. B. M. Henry, A. G. Erlat, C. R. M. Grovenor, and G. A. D. Brigg, 'Gas Permeation studies of Metal Oxide/Polymer Composite Films', 45th manual Technical Conference, (2002)
  6. D. Scharnhost, Surf. Sci., 15(1969)
  7. M. L. Gimpl, A. D. Master and N. Fuschillo, 'Amorphous Oxide Layers on Gold and Nickel. Films observed by Electron Microscopy', J. Appl. Phys, 35(1964)
  8. 최시영 김진섭 마대영 박욱동, 박막공학의 기초 일진사(2003)
  9. G. Pan, D. J. Mapps, K. J. Kirk and J. N. Chapman : IEEE Tran, Magn, 33(1997)
  10. H.Angus Macleod, 'Thin film optical filter', 3rd Ed., pp. 210-256, Iop,(2001)
  11. 황보창권, '박막광학', pp 103-109, 다성출판사(2000)
  12. R. E. Johnson, R. H. Dettre, 'Wettability', edited by H. C. Berg(Marcel Decker, In., New York), pp. 2-73
  13. A. Adamson, 'Physical Chemistry of Surfaces', 6th ed, (John Wiley & Sons, inc., New York, 1997), pp. 347-389
  14. F. M. Fowkes, 'Attractive Forces at Interfaces', Industrial and Engineering Chemistry, Vol. 56, No. 12, Dec, 1964, pp. 40-52
  15. Kuixiang Ma, Tai-Shung Chung, Robert, J. Good, 'Surface Energy of Thermotropic Liquid Crystalline Polyesters and Polyesteramide', Journal of Polymer Science : Part, B: Polymer Physics., 1998, Vol. 36, pp. 2327-2337 https://doi.org/10.1002/(SICI)1099-0488(19980930)36:13<2327::AID-POLB8>3.0.CO;2-P
  16. Essential Macleod : Thin-Fine Design Software
  17. G. Atanassov, R. Thielsh, D.Popov, 'Optical properties of $TiO_2,\;Y_2O_3\;and\;CeO_2$ thin films deposited by electron beam evaporation', Thin Solid Films, 223, 288-292(1993) https://doi.org/10.1016/0040-6090(93)90534-V
  18. K. Narasimha Rao, L.shivlingappa, S. Mohan, 'studies on single layer $CeO_2\;and\;SiO_2$ films deposited by rotating crucible electron beam evaporation', Materials Science and Engineering B98, pp. 38-44(2003)

Cited by

  1. Analysis on Sequence of Ball-pen and Pencil by using Digital Infrared Photography -with Emphasis on the Documents Authentication- vol.11, pp.5, 2011, https://doi.org/10.5392/JKCA.2011.11.5.481