影像科学与光化学 ›› 1999, Vol. 17 ›› Issue (3): 199-202.DOI: 10.7517/j.issn.1674-0475.1999.03.199

• 研究快讯 • 上一篇    下一篇

苯并噻唑衍生物用作EL器件中发光材料的研究

张晓宏1, 吴世康1, 高志强2, W.Y. Lai2, 李振声2, 邝海伦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
  • 收稿日期:1999-04-20 修回日期:1999-05-12 出版日期:1999-08-20 发布日期:1999-08-20
  • 通讯作者: 张晓宏
  • 基金资助:
    国家自然科学基金委的资助(批准号:59673018)

STUDY ON BENZOTHIAZOLATE DERIVATIVE AS NOVEL EMITTING MATERIALS IN BLUE ORGANIC ELECTROLUMINESCENT DEVICES

ZHANG Xiaohong1, WU Shikang1, GAO Zhiqiang2, LAI W Y2, LI Zhensheng(LEE C S)2, KUANG Hailun(KWONG Hoilun)2, LI Shutang(LEE Shuittong)2   

  1. 1. Institute of Photographic Chemistry, The Chinese Academy of Sciences, Beijing 100101, P.R. China;
    2. Centre of Super-Diamond and Advanced Films(COS DAF), Department of Physics and Materials Science, City University of Hong Kong, Kowloon, Hong Kong
  • Received:1999-04-20 Revised:1999-05-12 Online:1999-08-20 Published:1999-08-20

摘要: 在多层结构的有机电致发光器件(EL)研制中,一个最富吸引力的提高器件发光效率的方法是通过选择具有高荧光量子产率的发光染料为掺杂剂,加入到作为主体的电子或空穴传输层内,经电子与空穴在主体化合物层内的复合形成激子,经能量转移,激发染料分子,发射染料荧光。

关键词: 苯并噻唑衍生物, 电致发光, 光致发光

Abstract: Benzothiazolate derivative (BT) with high fluorescence quantum yield was synthesized and firstly used as dopant in blue organic electroluminescent devices. The devices structure ITO/TPD/DPBI:2% BT/DPBI/Mg:Ag was employed, in which TPD is N,N’-bis(3methylphenyl)N,N’-diphenyl1, 1’-biphenyl-4, 4’-diamine and used as a hole transport layer (HTL);DPBI is a dimer of Narylbenzimidazoles and functioned as host and electron transporter. In the device with BT as dopant, blue emission peak around 475 nm and a luminance of 1260 cd/m2 was achieved at a current density of about 400 mA/cm2. The current efficiency of this device is about 0.50 cd/A at 5 V.

Key words: benzothiazolate derivative, electroluminescent, photoluminescent