DOI: 10.1063/1.124944. Device degradation of polymer light emitting diodes studied by electroabsorption measurements

Device degradation of polymer light emitting diodes studied by electroabsorption measurements

10.1063/1.124944

Crossref journal-article

AIP Publishing

Applied Physics Letters (317)

Abstract

We have studied the device degradation of single layer poly(2,5-dialkoxy-p-phenylenevinylene) light emitting diodes by electroabsorption spectroscopy. The applied direct current (dc) bias generates an opposing internal field. This internal field rises as the applied dc bias is increased. The development of the internal field is less pronounced in vacuum than in an ambient atmosphere and is no longer apparent for devices that were prepared and tested under an inert atmosphere in a glovebox. For the devices that were tested in air and under dynamic vacuum conditions we have also observed a change in the flat band voltage of the devices due to an aging effect on the electrodes. The combination of these two processes leads to an increase in the device turn-on voltage with increasing operating time.

Bibliography

Giebeler, C., Whitelegg, S. A., Lidzey, D. G., Lane, P. A., & Bradley, D. D. C. (1999). Device degradation of polymer light emitting diodes studied by electroabsorption measurements. Applied Physics Letters, 75(14), 2144â2146.

Authors 5

C. Giebeler (first)
S. A. Whitelegg (additional)
D. G. Lidzey (additional)
P. A. Lane (additional)
D. D. C. Bradley (additional)

References 20 Referenced 30

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Dates

Type	When
Created	23 years, 1 month ago (July 26, 2002, 9:29 a.m.)
Deposited	1 year, 6 months ago (Feb. 3, 2024, 11:57 a.m.)
Indexed	1 year, 6 months ago (Feb. 6, 2024, 10:24 p.m.)
Issued	25 years, 10 months ago (Oct. 4, 1999)
Published	25 years, 10 months ago (Oct. 4, 1999)
Published Print	25 years, 10 months ago (Oct. 4, 1999)

Funders 0

None

BibTeX

@article{Giebeler_1999, title={Device degradation of polymer light emitting diodes studied by electroabsorption measurements}, volume={75}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.124944}, DOI={10.1063/1.124944}, number={14}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Giebeler, C. and Whitelegg, S. A. and Lidzey, D. G. and Lane, P. A. and Bradley, D. D. C.}, year={1999}, month=oct, pages={2144–2146} }

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