Operating stability of light-emitting polymer diodes based on poly(p-phenylene vinylene)

被引：129

作者：

Carter, JC

Grizzi, I

Heeks, SK

Lacey, DJ

Latham, SG

May, PG

delosPanos, OR

Pichler, K

Towns, CR

Wittmann, HF

机构：

[1] Cambridge Display Technology Ltd.

来源：

APPLIED PHYSICS LETTERS | 1997年 / 71卷 / 01期

关键词：

D O I：

10.1063/1.119483

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have developed modified poly(p-phenylene vinylene) (PPV) to improve its performance in organic electroluminescent devices. Encapsulated single-layer devices with this PPV on indium-tin oxide and a calcium cathode have been operated in air for > 7000 h at 20 degrees C and > 1100 h at 80 degrees C without noticeable degradation. Devices fabricated with this PPV, a conducting polymer layer as anode, and a sputtered low work-function alloy as cathode have efficiencies of over 2 lm/W, brightnesses of >600 Cd/m(2) at 4 V, and lifetimes of > 1400 h driven at similar to 100 Cd/m(2) initial brightness. (C) 1997 American Institute of Physics.

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页码：34 / 36

页数：3

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