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Cited by 517

The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

Built-in field electroabsorption spectroscopy of polymer light-emitting diodes incorporating a doped poly(3,4-ethylene dioxythiophene) hole injection layer

Brown, T. M., Kim, J. S., Friend, R. H., Cacialli, F., Daik, R., Feast, W. J.·1999·Applied Physics Letters

Abstract

We report electroabsorption measurements of polymer light-emitting diodes, (LEDs), fabricated with poly(4-4′-diphenylene diphenylvinylene), PDPV, as the emissive layer, Ca–Al cathodes, and indium tin oxide (ITO) anodes, with and without a doped conducting polymer hole injection/transport layer, namely poly(3,4-ethylene dioxythiophene), PEDOT, doped with poly(styrene sulfonate), PSS−. In these structures, the bias at which the electroabsorption signal is null corresponds to the difference between the electrodes’ work functions. We find that such a built-in voltage increases by 0.5 V when a PEDOT:PSS film is incorporated between the ITO electrode and the emissive layer. This leads to a marked reduction of the anode barrier height at the hole-injecting interface, and accounts for a variety of improvements brought about by the PEDOT insertion, namely: (a) the increase of luminescence efficiency, (b) the reduction of the turn-on voltage, and (c) the increase of the device lifetime.

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Metadata

Authors
Brown, T. M., Kim, J. S., Friend, R. H., Cacialli, F., Daik, R., & Feast, W. J.
Venue
Applied Physics Letters
Published
1999-09-20
Volume
75
Issue
12
Pages
1679-1681
ISSN
  • 0003-6951 (ISSN-L)
  • 1077-3118
OpenAlex
W2050107394
Cited by
517
References
11
FWCI
21.80
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Built-in field electroabsorption spectroscopy of polymer light-emitting diodes incorporating a doped poly(3,4-ethylene dioxythiophene) hole injection layer. https://app.cochat.ai/papers/10.1063/1.124789
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Brown, T. M., Kim, J. S., Friend, R. H., Cacialli, F., Daik, R., & Feast, W. J. (1999). Built-in field electroabsorption spectroscopy of polymer light-emitting diodes incorporating a doped poly(3,4-ethylene dioxythiophene) hole injection layer. Applied Physics Letters. https://doi.org/10.1063/1.124789

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