Pressure dependence of electrical and optical characteristics of Alq3 based organic electroluminescent diodes

被引:36
作者
Destruel, P [1 ]
Jolinat, P [1 ]
Clergereaux, R [1 ]
Farenc, J [1 ]
机构
[1] Lab Genie Elect Toulouse, ESA 5003, CNRS, F-31062 Toulouse 4, France
关键词
D O I
10.1063/1.369396
中图分类号
O59 [应用物理学];
学科分类号
摘要
Organic electroluminescent diodes based on thin organic layers are one of the most promising next-generation systems for the backlighting of liquid crystal screens. In the literature, conduction has been interpreted in terms of tunneling or as a space charge limited process. To clarify this point we carried out an experimental study of the electrical and optical characteristics, as a function of the applied voltage, for different hydrostatic pressures. Results show that tunneling is the dominant mechanism which controls the organic light emitting diodes efficiency. (C) 1999 American Institute of Physics. [S0021-8979(99)00501-0].
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页码:397 / 400
页数:4
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