화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korea Polymer Journal, Vol.6, No.3, 263-269, August, 1998
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Organic Electroluminescent Devices Utilizing Conducting Polymer-Organometallic Complex Hetero-Junction
Kim Y, Lee JG
The organic electroluminescent devies (OELDs) were successfully fabricated utilizing the blend film of conducting polymer and aromatic polyinide as a hole-transporting layer (HTL). The conducting polymer and aromatic polymide were polyaniline emeraldine salt(PANI-DBSA) and poly(4,4''-oxydiphenylen pyromellitimide) (PMDA-ODA PI), respectively. The blend compositions were varied from 5/95 to 80/20. Tris(8-hydroxyquinolinato) aluminum (Alq3) and aluminum were used as an emission and electron-transporting layer and cathode, respectively. The turn-om voltage of the OELDs was ranged from 5 V to 8 V, and the brightness reached about 1,800 cd/㎡. The luminous efficiency was varied from 0.1 lm/W to 6 lm/W when the brightness was 300 cd/㎡. The optimum blend composition was 20/80, giving the highest luminous efficiency and lowest power consumption. The energy band of the blend films, electron affinity and ionization potential, may be shifted toward higher energy region than that of the PANI-DBSA itself by the presence of the polyimide because of the good electron-confining effect as well as hole-injecting behavior, depending on the blend compositions.
  1. Tang CW, SID Digest, F-4/3 (1997)
  2. Tsutsui T, Oyobuturi, 66, 109 (1997)
  3. Burrows PE, Bulovic V, Forrest SR, Sapochak LS, McCarty DM, Thompson ME, Appl. Phys. Lett., 65, 2922 (1994) 
  4. Van Slyke SA, Chen CH, Tang CW, Appl. Phys. Lett., 69, 2160 (1996) 
  5. Cumpston BH, Jensen KF, Appl. Phys. Lett., 69(25), 3941 (1996) 
  6. Tokito S, Tanaka H, Noda K, Okada A, Taga Y, IEEE Trans. Electron Devices, 44, 1239 (1997) 
  7. Kim Y, Ree M, Chang T, Ha CS, Polym. Bull., 34(2), 175 (1995) 
  8. Ree M, Goh WH, Kim Y, Polym. Bull., 35(1-2), 215 (1995) 
  9. Kim K, Ryou JH, Kim Y, Ree M, Chang T, Polym. Bull., 34(2), 219 (1995) 
  10. Kim Y, Ree M, Chang T, Ha CS, Nunes TL, Lin JS, J. Polym. Sci. B: Polym. Phys., 33(14), 2075 (1995) 
  11. Kim Y, Lee WK, Cho WJ, Ha CS, Ree M, Chang T, Polym. Int., 43, 129 (1997) 
  12. Kim Y, Kang E, Kwon YS, Cho WJ, Cho C, Chang M, Ree M, Chang T, Ha CS, Synth. Met., 85, 1399 (1997) 
  13. Kim YK, Cho WJ, Ha CS, Tsutsui T, Saito S, Mol. Cryst. Liq. Cryst., 280, 343 (1996)
  14. Kim Y, Cho WJ, Ha CS, Mol. Cryst. Liq. Cryst., 295, 31 (1997)
  15. Lee JG, Park B, Woo HS, Kim Y, Ha CS, Lee CM, Jeong K, Ha JH, Kim YR, Solid State Commun., 102, 895 (1997) 
  16. Kim Y, Lee JG, Choi DK, Jung YY, Park B, Keum JH, Ha CS, Synth. Met., 91, 329 (1997) 
  17. Lee JG, Kim Y, Jang SH, Kwon SN, Jeong K, Appl. Phys. Lett., 72, 1757 (1997)
  18. Lim H, Park H, Lee JG, Kim Y, Cho WJ, Ha CS, Mol. Cryst. Liq. Cryst., in press (1998)
  19. Park H, Lim H, Kim Y, Cho WJ, Ha CS, Mol. Cryst. Liq. Cryst., in press (1998)
  20. Lim H, Park H, Lee JG, Kim Y, Cho WJ, Ha CS, SPIE: Polym. Photonic Devices, San Jose, In Press (1998)
  21. Kim Y, Lee JG, Hwang H, Jang SH, Mol. Cryst. Liq. Cryst., in press (1998)
  22. Gustaffson G, Cao Y, Treacy GM, Klavetter F, Colaneri N, Heeger AJ, Nature, 357, 477 (1992) 
  23. Yang Y, Westerweele E, Zhang C, Smith P, Heeger AJ, J. Appl. Phys., 77, 694 (1995) 
  24. Karg S, Scott JC, Salem JR, Angelopoulos M, Synth. Met., 80, 111 (1996) 
  25. DeSurville R, Jozefowicz M, Yu LT, Perichon J, Buvet RE, Electrochim. Acta, 13, 1451 (1968) 
  26. Jozefowicz M, Perichon JH, Yu LT, Buvet RE, British Patent, 1,216,569 (1970)
  27. Langer J, Solid State Commun., 26, 839 (1978) 
  28. McDiarmid AG, Mu SL, Somasiri NLD, Wu W, Mol. Cryst. Liq. Cryst., 121, 187 (1985)