Stability of polymer LEDs

被引：101

作者：

Berntsen, A ^{[1
]}

Croonen, Y ^{[1
]}

Liedenbaum, C ^{[1
]}

Schoo, H ^{[1
]}

Visser, RJ ^{[1
]}

Vleggaar, J ^{[1
]}

van de Weijer, P ^{[1
]}

机构：

[1] Philips Res Labs, NL-5656 AA Eindhoven, Netherlands

来源：

OPTICAL MATERIALS | 1998年 / 9卷 / 1-4期

关键词：

D O I：

10.1016/S0925-3467(97)00082-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polymer LEDs have a number of attractive properties that make them suitable for many applications. Operating at low voltage, bright large-area devices can be made by simple technology. One of the limitations that prohibited industrialization of polymer LEDs was their limited lifetime. An overview of the improvement of polymer LED performance at Philips is presented. The progress during the last year is reflected by lifetimes of many thousands of hours for 8 cm(2) devices that operate at daylight visibility under ambient conditions. Diagnostic measurements have been performed on polymer LEDs before and after stress testing, and on the materials used in these devices. These measurements have contributed to the understanding of the nature of the degradation of polymer LEDs. (C) 1998 Elsevier Science B.V.

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页码：125 / 133

页数：9

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