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Proceedings Paper

Stability and characterization of large-area polymer light-emitting diodes over extended periods
Author(s): Richard E. Gill; Peter van de Weijer; Coen T. H. F. Liedenbaum; Herman F. M. Schoo; Arjan J. M. Berntsen; Jeroen J. M. Vleggaar; Robert Jan Visser
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Paper Abstract

In order to apply polymer light-emitting diodes in commercial products 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 dialkoxy-substituted fully conjugated PPV. Lifetime measurements have been performed on small and large 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 result are compared with lifetime specifications for applications in consumer applications and are discussed in terms of the stability of the emissive polymer. Spectral measurements as a function of the operational lifetime are presented.

Paper Details

Date Published: 16 December 1998
PDF: 7 pages
Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332628
Show Author Affiliations
Richard E. Gill, Philips Research Labs. (Netherlands)
Peter van de Weijer, Philips Research Labs. (Netherlands)
Coen T. H. F. Liedenbaum, Philips Research Labs. (Netherlands)
Herman F. M. Schoo, Philips Research Labs. (Netherlands)
Arjan J. M. Berntsen, Philips Research Labs. (Netherlands)
Jeroen J. M. Vleggaar, Philips Research Labs. (Netherlands)
Robert Jan Visser, Philips Research Labs. (United States)

Published in SPIE Proceedings Vol. 3476:
Organic Light-Emitting Materials and Devices II
Zakya H. Kafafi, Editor(s)

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