ELECTRON INJECTION POLYMER FOR POLYMER LIGHT-EMITTING-DIODES

被引：75

作者：

YANG, Y

PEI, Q

机构：

[1] UNIAX Corporation, Santa Barbara, CA 93117

来源：

JOURNAL OF APPLIED PHYSICS | 1995年 / 77卷 / 09期

关键词：

D O I：

10.1063/1.359401

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report the use of an oxadiazole-containing polymer, poly(phenylene-1,3, 4-oxadiazole- phenylene-hexafluoroisopropylidene) (PPOPH), as the electron injection layer in polymer light-emitting diodes. By introducing a PPOPH layer between the cathode (aluminum) and the luminescent polymer (poly(2-methoxy-5- (2'-ethyl-hexyloxy)-1,4-phenylene vinylene), the device performance was significantly improved; the quantum efficiency increased by a factor of 40, close to that of the same device using calcium as the cathode. By utilizing a porous polyaniline network electrode as the anode, the operating voltage was lowered by a factor of 2 with turn on at ∼5×105 V/cm. © 1995 American Institute of Physics.

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页码：4807 / 4809

页数：3

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