Stability and characterization of large area polymer light-emitting diodes over extended periods

被引：20

作者：

Gill, RE ^{[1
]}

van de Weijer, P ^{[1
]}

Liedenbaum, CTH ^{[1
]}

Schoo, HFM ^{[1
]}

Berntsen, A ^{[1
]}

Vleggaar, JJM ^{[1
]}

Visser, RJ ^{[1
]}

机构：

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

来源：

OPTICAL MATERIALS | 1999年 / 12卷 / 2-3期

关键词：

polymer LED; lifetime; failure analysis;

D O I：

10.1016/S0925-3467(99)00049-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to exploit the extensive potential of polymer light-emitting diodes in commercial applications a number of lifetime specifications have to be met. In this paper we report on the performance and stability of polymer light-emitting diodes based on fully conjugated PPV. Lifetime measurements have been performed on small (5 mm(2)) and large (8 cm(2)) area devices under different conditions, including variations in temperature, luminescence intensity and humidity. It will be shown that polymer LEDs can withstand extreme lifetime tests successfully. The results are compared with lifetime specifications for applications in consumer applications and are discussed in terms of the stability of the emissive polymer. Spectral measurements (IR, FL) as a function of the operational lifetime are presented. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：183 / 187

页数：5

共 8 条

[1] LIGHT-EMITTING-DIODES WITH VARIABLE COLORS FROM POLYMER BLENDS [J].