影像科学与光化学 ›› 2000, Vol. 18 ›› Issue (2): 160-164.DOI: 10.7517/j.issn.1674-0475.2000.02.160

• 研究简报 • 上一篇    下一篇

具有不同取代基的吡唑啉衍生物的光致发光和电致发光

张晓宏1, 姜永才1, 吴世康1, 高志强2, 李振声2, 李述汤2   

  1. 1. 中国科学院感光化学研究所, 北京100101;
    2. 香港城市大学物理与材料系, 香港九龙
  • 收稿日期:1999-06-02 修回日期:1999-07-14 出版日期:2000-05-20 发布日期:2000-05-20
  • 通讯作者: 吴世康
  • 基金资助:
    国家自然科学基金委资助(59673018)

THE EFFECT OF SUBSTITUENTS ON PHOTOLUMINESCENCE AND ELECTROLUMINESCENCE OF PYRAZOLINE DERIVATIVES

ZHANG Xiao-hong1, JIANG Yong-cai1, WU Shi-kang1, GAO Zhi-qiang2, LI Zhen-sheng(LEE C S)2, LI Shu-tang(LEE S T)2   

  1. 1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P. R. China;
    2. Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong, P. R. China
  • Received:1999-06-02 Revised:1999-07-14 Online:2000-05-20 Published:2000-05-20

摘要: 在合成两种具有不同取代基的吡唑啉衍生物PD1和PD2的基础上,研究了不同取代基效应对其光致发光和电致发光性质的影响.结果表明甲氧基取代的化合物PD2较N,N-二甲氨基取代的化合物PD1具有更高的荧光量子产率.而在作为有机电致发光器件的掺杂染料,当其器件结构为ITO/TPD/TPBI:2% PD/TP-BI/Mg:Ag时,PD1掺杂染料却有着较PD2更高的电致发光效率.当器件的电流密度为420 mA/cm2时,掺杂染料为PD1的器件在487 nm处发射蓝光,其发光亮度为1224 cd/m2.

关键词: 吡唑啉衍生物, 光致发光, 电致发光

Abstract: Two compounds of pyrazoline derivatives (PD1, PD2) with different substituents were synthesized. The effects of substituents on their photoluminescence and eletroluminescence were also studied. The results indicate that the fluorescence quantum yield of compound PD2 with methoxy group is higher than that of compound PD1 with the substituents of N,N-dimethlyamino group. But as dopants in organic electroluminescent devices, in which the structure ITO/TPD/TPBI:2%PD/TPBI/Mg:Ag was employed, the device with PD1 as dopant is more effective than that of PD2. In the device with PD1 as dopant, blue emission peak around 487 nm and a luminance of 1224 cd/m2 is achieved at a current density of about 420 mA/cm2. These results are discussed preliminarily.

Key words: pyrazoline derivatives, photoluminescence, electroluminescence

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