Oxadiazole-containing phenylene vinylene ether linkage copolymer as blue-green luminescent and electron transport material in polymer light-emitting diodes

被引：33

作者：

Lee, YZ ^{[1
]}

Chen, SA ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Dept Chem Engn, Hsinchu 30043, Taiwan

来源：

SYNTHETIC METALS | 1999年 / 105卷 / 03期

关键词：

polymer light-emitting diode; electroluminescence; poly(phenylene vinylene) (PPV); oxadiazole; electron transport layer (ETL);

D O I：

10.1016/S0379-6779(99)00099-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report studies on a new ether-type poly(phenylene vinylene) (PPV) copolymer containing oxadiazole groups in the conjugated main chain. It can be used as a blue-green electroluminescent material and as an electron transport/hole blocking material in polymer light-emitting diodes using PPV as the emitting material. The bilayer devices with aluminum cathode show a maximum brightness of about 300 cd/m(2) at about 21 V and a maximum external quantum efficiency of 0.1%. The quantum efficiency of the bilayer device is enhanced by a factor of 195 in comparison with that of the single layer device of PPV. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：185 / 190

页数：6

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