Electroluminescence of polymer blend composed of conjugated and nonconjugated polymers. White-light-emitting Diode

被引:45
作者
Shim, HK [1 ]
Kang, IN
Jang, MS
Zyung, T
Jung, SD
机构
[1] Korea Adv Inst Sci & Technol, Dept Chem, Taejon 305701, South Korea
[2] Elect & Telecommun Res Inst, Taejon 305600, South Korea
关键词
D O I
10.1021/ma970434n
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
We report on the investigations of electroluminescence (EL) for the polymer blend composed of two organic soluble polymers. The blends consist of main chain conjugated poly[(2-methoxy-5-((2-ethylhexyl)oxy)-1,4-phenylene)vinylene] (MEH-PPV) and a side chain luminescent polymer, an alkoxy(trifluoromethyl)stilbene-substituted PMA derivative (CF3-PMA). Emitting colors of the polymer blends varied with the blending ratios of two polymers. The electroluminescent peak of the MEH-PPV-rich polymer blend ranged over 580-800 nm (orange-red light), and of the CF3-PMA-rich polymer blend ranged from 380 to 800 nm, resulting in a white-light emission. Additional new EL peaks of polymer blends at around 380 and 800 nm would originate from the CF3-PMA and the exciplex formed by photoinduced electron transfer between two polymers.
引用
收藏
页码:7749 / 7752
页数:4
相关论文
共 24 条
  • [1] ADACHI C, 1988, JPN J APPL PHYS, V27, pL268
  • [2] IMPROVED EFFICIENCY IN POLYMER LIGHT-EMITTING-DIODES USING AIR-STABLE ELECTRODES
    ARATANI, S
    ZHANG, C
    PAKBAZ, K
    HOGER, S
    WUDL, F
    HEEGER, AJ
    [J]. JOURNAL OF ELECTRONIC MATERIALS, 1993, 22 (07) : 745 - 749
  • [3] CONTROLLING COLOR BY VOLTAGE IN POLYMER LIGHT-EMITTING-DIODES
    BERGGREN, M
    INGANAS, O
    GUSTAFSSON, G
    ANDERSSON, MR
    HJERTBERG, T
    WENNERSTROM, O
    [J]. SYNTHETIC METALS, 1995, 71 (1-3) : 2185 - 2186
  • [4] LIGHT-EMITTING-DIODES WITH VARIABLE COLORS FROM POLYMER BLENDS
    BERGGREN, M
    INGANAS, O
    GUSTAFSSON, G
    RASMUSSON, J
    ANDERSSON, MR
    HJERTBERG, T
    WENNERSTROM, O
    [J]. NATURE, 1994, 372 (6505) : 444 - 446
  • [5] COLOR-VARIABLE ELECTROLUMINESCENT DIODE WITH SINGLE-QUANTUM-WELL STRUCTURE UTILIZING 8-HYDROXYQUINOLILZE ALUMINUM AND AROMATIC DIAMINE
    FUJII, A
    YOSHIDA, M
    OHMORI, Y
    YOSHINO, K
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1995, 34 (4B): : L499 - L502
  • [6] GAILBERGER M, 1991, PHYS REV B, V44, P8463
  • [7] White light emission from a polymer blend light emitting diode
    Granstrom, M
    Inganas, O
    [J]. APPLIED PHYSICS LETTERS, 1996, 68 (02) : 147 - 149
  • [8] FLEXIBLE LIGHT-EMITTING-DIODES MADE FROM SOLUBLE CONDUCTING POLYMERS
    GUSTAFSSON, G
    CAO, Y
    TREACY, GM
    KLAVETTER, F
    COLANERI, N
    HEEGER, AJ
    [J]. NATURE, 1992, 357 (6378) : 477 - 479
  • [9] SYNTHESIS AND CHARACTERIZATION OF A NEW EFFICIENT BLUE-LIGHT-EMITTING COPOLYMER
    HILBERER, A
    BROUWER, HJ
    VANDERSCHEER, BJ
    WILDEMAN, J
    HADZIIOANNOU, G
    [J]. MACROMOLECULES, 1995, 28 (13) : 4525 - 4529
  • [10] HWANG DH, 1995, B KOR CHEM SOC, V16, P135