LIGHT-EMITTING-DIODES FROM PARTIALLY CONJUGATED POLY(P-PHENYLENE VINYLENE)

被引：150
作者：
ZHANG, C
BRAUN, D
HEEGER, AJ
机构：
[1] Institute for Polymers and Organic Solids, University of California at Santa Barbara, Santa Barbara
来源：
JOURNAL OF APPLIED PHYSICS | 1993年 / 73卷 / 10期
关键词：
D O I：
10.1063/1.353794
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We report the effect of conversion conditions on the device characteristics of poly(p-phenylene vinylene) (PPV) light-emitting diodes. Both electroluminescence and photoluminescence intensities decrease with increasing degree of conversion. Partial conjugation enhances the electroluminescence intensity and gives an efficiency (with Ca as electron-injecting contact) as high as 0.75% photons per electron, about two orders of magnitude more efficient than from similar devices prepared from fully converted PPV. The results of constant current stress measurements suggest that the partially conjugated PPV diode is relatively stable at room temperature.
引用
收藏
页码：5177 / 5180
页数：4
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