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1. 重庆市高校光学工程重点实验室, 重庆师范大学 物理学与电子工程学院 重庆,400047
2. 电子薄膜与集成器件国家重点实验室, 电子科技大学 光电信息学院,四川 成都,610054
收稿:2011-08-20,
修回:2011-10-25,
网络出版:2011-12-22,
纸质出版:2011-12-22
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关云霞, 牛连斌, 孔春阳, 崔玉亭, 何国田. 基于激基复合物纯正发射的有机电致发光器件性能[J]. 发光学报, 2011,32(12): 1262-1265
GUAN Yun-xia, NIU Lian-bin, KONG Chun-yang, CUI Yu-ting, HE Guo-tian. Organic Light Emitting Devices Based on Pure Exciplex Electroluminescence[J]. Chinese Journal of Luminescence, 2011,32(12): 1262-1265
利用聚合物三苯基二胺衍生物(Poly-TPD)掺杂2
5-双(5-叔丁基-2-苯并恶唑基)噻吩(BBOT)作为器件发光材料
研制了基于激基复合物纯正发射的有机电致发光器件。器件的具体结构为:ITO/PEDOT∶PSS (25 nm)/ Poly-TPD∶BBOT(1∶1
80 nm)/Al(70 nm)。研究结果表明
该器件的556 nm黄绿光发射来自于发光层Poly-TPD∶BBOT形成的电致激基复合物的单一发射
而源于Poly-TPD和BBOT的本征发射全部消失。
Exciplex emission is considered to be very important for understanding the fundamental processes of electronic excitation. Here we report a pure exciplex emission device of the binary-blend ITO/ Poly(3
4-ethylenedioxythiophene)∶poly (styrenesulfonate) (PEDOT∶PSS)/poly [-bis (4-butylphenyl)-bis(phenyl) benzidine](Poly-TPD)∶2
5-bis(5-tert-butyl-2-benzoxazolyl) thiophene (BBOT)/Al. The luminance-voltage and current density-voltage characteristics of devices were investigated
and differences between their performances were discussed. The pure exciplex electroluminescence was investigated in terms of the energy level diagram of the Poly-TPD∶BBOT device.
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