Browse > Article
http://dx.doi.org/10.5695/JKISE.2008.41.3.102

The Effect of Polymer Thin Film for Sealing Buffer on the Characteristics of OLEO Device  

Lee, Bong-Sub (Department of Advanced Materials Science and Engineering, Daejin University)
Ju, Sung-Hoo (Department of Advanced Materials Science and Engineering, Daejin University)
Yang, Jae-Woong (Department of Advanced Materials Science and Engineering, Daejin University)
Publication Information
Journal of the Korean institute of surface engineering / v.41, no.3, 2008 , pp. 102-108 More about this Journal
Abstract
In this paper, the LiF and polymer thin film as passivation layer have been evaporated on green OLED devices. HDPE, polyacenaphthylene, polytetrafluoroethylene, poly(2,6-dimethyl-1,4-pheneylene oxide), poly sulfone and poly(dimer-acid-co-alkyl poly-amine) have been used as polymer materials. The optical transmittance of evaporated polymer thin film was very good as an above 90% in visible range. The morphology of polymer thin film was measured by AFM. As a result of the measurement average roughness($R_a$) value of the polysulfone was very low as 2.2 nm. The green OLED devices with a structure of ITO/HIL/HTL/EML/Buffer/Al in series of various passivation films were fabricated and analyzed. It was observed that an OLED device with LiF as first passivation film has shown the good electrical and optical property, and all kind of polymer films did not influence on the I-V-L characteristics and the life time of OLED devices. Therefore, we found that polymer layer played a key role as a buffer layer between the inorganic passivation layers to relieve the stress of the inorganic layers.
Keywords
OLEO; Passivation; Thin film; Polymer; Inorganic;
Citations & Related Records
연도 인용수 순위
  • Reference
1 S. H. Ju, J. of IEEME, 19(8) (2006) 758
2 H. Aziz, Z. Popovic, C. P. Tripp, N. Hu, A. Hor, G. Xu, Appl. Phys. Lett., 72 (1998) 2642   DOI   ScienceOn
3 V. N. Bliznyuk, S. A. Carter, J. C. Scott, G. Klarner, R. D. Miler, D. C. Miller, Macromolecules, 32 (1999) 361   DOI   ScienceOn
4 K. K. Lien, S. J. Chua, S. F. Lim, J. Appl. Phys., 90 (2001) 976   DOI   ScienceOn
5 K. Yamashita, T. Mori, T. Mitzutani, J. Phys. D. Appl. Phys., 34 (2001) 740   DOI   ScienceOn
6 J. D. Affinito, S. Eufinger, M. E. Gross, G. L. Graff, P. M. Martin, Thin Solid Films, 308 (1997) 19   DOI   ScienceOn
7 W. Graupner, C. M. Heller, A. P. Ghosh, W. E. Howard (Eds.), SPIE Proceedings, USA, 4207 (2000) 11
8 R. C. Kwong, M. R. Nugent, L. Michalski, T. Ngo, K. Raj an, Y. J. Tung, M. S. Weaver, T. X. Zhou, M. Hack, M. E. Thompson, S. R. Forrest, J. J. Brown, Appl. Phys. Lett., 81 (2002) 162   DOI   ScienceOn
9 C. W. Tang, S. A. VanSlyke, Appl. Phys. Lett., 51 (1987) 913   DOI
10 C. N. Li, A. B. Djurisic, C. Y. Kwong, P. T. Lai, W. K. Chan, S. Y. Liu, Appl. Phys. A, 80 (2005) 301   DOI   ScienceOn
11 P. E. Burrows, V. Bulovic, S. R. Forrest, L. S. Sapochak, D. M. McCarty, M. E. Thompson, Appl. Phys. Lett., 65 (1994) 2922   DOI   ScienceOn
12 P. E. Burrows, G. L. Graff, M. E. Gross, P. M. Martin, M. K. Shi, M. Hall, E. Mast, C. Bonham, M. B. Sullivan, Displays, 22 (2001) 65   DOI   ScienceOn
13 Shizuo Tokito, Chihaya Adachi, Hideyuki Murata, 유기 EL 디스플레이 기초와 응용, 성안당, (2006) 125
14 Z. Y. Xie, L. S. Hung, Appl. Phys. Lett., 84(7) (2004) 1207   DOI   ScienceOn
15 B. H. Cumpston, I. D. Parker, K. F. Jensen, J. Appl. Phys., 81 (1997) 3716   DOI   ScienceOn
16 S. H. Kwon, S. Y. Paik, O. J. Kwon, J. S. Yoo, Appl. Phys. Lett., 79 (2001) 4450   DOI   ScienceOn
17 S. Kho, D. Cho, D. Jung, Jpn. J. Appl. Phys., 41 (2002) L1336   DOI   ScienceOn
18 M. S. Weaver, L. A. Michalski, K. Rajan, M. A. Rothman, J. A. Silvernail, P. E. Burrows, G. L. Graff, M. E. Gross, P. M. Martin, M. Hall, E. Mast, C. Bonham, W. Benneltz, M. Zumhoff, Appl. Phys. Lett., 81 (2002) 2929   DOI   ScienceOn