Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
권호 표지
DOI QR코드

DOI QR Code

Passivation Properties of SiNx Thin Film for OLEO Device

SiNx 박막에 의한 OLED 소자의 보호막 특성

  • Published : 2006.08.01

Abstract

We has been studied the thin film encapsulation effect for organic light-emitting diodes (OLED). To evaluate the passivation properties of the passivation layer materials, we have carried out the fabrication of green light emitting diodes with ultra violet(UV) light absorbing polymer resin, $SiO_2,\;and\;SiN_x$, respectively. From the measurement results of shrinkage properties according to the exposure time to the atmosphere, we found that $SiN_x$ thin film is the best material for passivation layer. We have investigated the emission efficiency and life time of OLED device using the package structure of $OLED/SiN_x/polymer$ resin/Al/polymer resin. The emission efficiency of this OLED device was 13 lm/W and life time was about 2,000 hours, which reach 95 % of the performance for the OLED encapsulated with metal.

Keywords

File

Download PDF

References

  1. Z. Y. Xie and L. S. Hung, 'High contrast organic light-emitting diodes', Applied Physics Letters, Vol. 84, No.7, p. 1207, 2004 https://doi.org/10.1063/1.1647689
  2. C. N. Li, A. B. Djurisic, C. Y. Kwong, Y. K. Chan, and S. Y. Liu, 'Indium tin oxide surface treatments for improvement of organic light-emitting diode performance', Applied Physics A, Vol. 80, p. 301, 2005 https://doi.org/10.1007/s00339-003-2146-0
  3. C. M. Aguirre, S. Auvray, S. Pigeon, R. Izquierdo, P. Desjardins, and R. Martel, 'Carbon nanotube sheets as electrodes in organic light-emitting diodes', Applied Physics Letters, Vol. 88, p. 183104, 2006 https://doi.org/10.1063/1.2199461
  4. C. H. Lee, Y. K. Lee, S. M. Lee, S. H. Ju, E. J. Lee, Y. M. Choo, K. C. Park, and J. Jang, 'A hybrid encapsulation method for OLED', SID '04 Digest, p. 715, 2004
  5. A. P. Ghosh, L. J. Gerenser, C. M. Jarman, and J. E. Fomalik, 'Thin-film encapsulation of organic light-emitting devices', Applied Physics Letters, Vol. 86, p. 223503, 2005 https://doi.org/10.1063/1.1929867
  6. 김광호, 이주원, 김영철, 주병권, 김재경, '유기 EL 보호층으로 적용하기 위한 무기 복합 박막의 투습율 특성 연구', 전기전자재료학회논문지, 17권, 4호, p. 432, 2004
  7. 주성후, '유기EL 패널 및 그 제조방법', 일본특허, 특허출원공개번호 2002-373778, 2002