高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    下一篇

利用激基复合物发光的有机白光器件制备

谢伟杰1,2, 李昱鹏1,2, 孙成林3, 李峰1, 费腾1, 马於光1   

    1. 吉林大学超分子结构与材料教育部重点实验室,
    2. 化学学院,
    3. 物理学院, 长春 130012
  • 收稿日期:2006-10-21 修回日期:1900-01-01 出版日期:2007-07-10 发布日期:2007-07-10
  • 通讯作者: 李峰

Preparation of Organic White Light-emitting Devices via Exciplex Emission

XIE Wei-Jie1,2, LI Yu-Peng1,2, SUN Cheng-Lin3, LI Feng1*, FEI Teng1, MA Yu-Guang1*   

    1. Key Laboratory for Supramolecular Structure and Materials of Ministry of Education,
    2. College of Chemistry,
    3. College of Physics, Jilin University, Changchun 130012, China
  • Received:2006-10-21 Revised:1900-01-01 Online:2007-07-10 Published:2007-07-10
  • Contact: LI Feng

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被引次数

15

摘要： 以1,4-二(2-氰基-2-苯乙烯基)-2,5-二苯基苯(CNDPDSB)为发光层, N,N'-[3-萘基]-N,N'-二苯基[1,1'-二苯基]-4,4'-二胺(NPB)为空穴传输层, 8-羟基喹啉铝(Alq)为电子传输层, 制备了一种色度稳定的有机电致白光器件. 该器件的白光发射是由CNDPDSB与NPB界面形成的激基复合物发出的红光以及NPB与CNDPDSB发射的蓝光混合而成. 该白光器件的光谱稳定, 在工作电压(6~13 V)内, 色坐标由(0.33, 0.34)变化到(0.31, 0.37). 器件在6 V电压下开启, 10 V电压下的亮度和效率分别为1200 cd/m2和0.2 cd/A.

关键词: 激基复合物发光, 有机电致发光, 白光发射

Abstract: Colour stable organic white light-emitting devices(LEDs) were prepared with N,N-diphenyl-N,N″-bis(1-naphthyl)-(1,1-biphenyl)-4,4'-diamine(NPB) as the hole-transporting layer, cyano substituted oligo(p-phenylene vinylene)(CNDPDSB) as the emitting layer, 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline(BCP) as the hole-blocking layer, tris-(8-hydroxyquinoline) aluminum lq as electron-transporting layer. This type of device has a simple structure. The white light comes from the mixing of red exciplex emission at the solid-state interface between CNDPDSB and NPB and blue emissions from NPB and CNDPDSB, respectively. The white LEDs exhibit a maximum luminescence of 1200 cd/m2 and efficiency of 0.2 cd/A, and the Commission International De L'Eclairage(CIE) coordinates of emission vary from (0.33, 0.34) to (0.31, 0.37) with increasing the bias from 6 V to 13 V.

Key words: Exciplex emission, Organic electroluminescence, White light emission

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