Optical studies of electric fields in poly(2-methoxy-5-ethyl (2′-hexyloxy) para-phenylene vinylene) light-emitting diodes

C. Giebeler; S. A. Whitelegg; A. J. Campbell; M. Liess; S. J. Martin; P. A. Lane; D. D.C. Bradley; G. Webster; P. L. Burn

doi:10.1063/1.123238

Optical studies of electric fields in poly(2-methoxy-5-ethyl (2′-hexyloxy) para-phenylene vinylene) light-emitting diodes

C. Giebeler, S. A. Whitelegg, A. J. Campbell, M. Liess, S. J. Martin, P. A. Lane, D. D.C. Bradley, G. Webster, P. L. Burn

Research output: Contribution to journal › Article › peer-review

43 Scopus citations

Abstract

We report electroabsorption studies of poly(2-methoxy-5-ethyl(2′-hexyloxy) para-phenylene vinylene) light-emitting diodes. An electric field develops during operation which opposes the field of the applied bias. The counter field builds up within 5 s of turning on the device, increases in magnitude with the operating voltage, and decays exponentially with a time constant between 15 and 32 s. We attribute the counter field to bulk carrier traps and discuss its relevance to the increase of the turn-on voltage as organic light-emitting diodes degrade. © 1999 American Institute of Physics.

Original language	English (US)
Journal	Applied Physics Letters
Volume	74
Issue number	24
DOIs	https://doi.org/10.1063/1.123238
State	Published - Jun 14 1999
Externally published	Yes

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title = "Optical studies of electric fields in poly(2-methoxy-5-ethyl (2′-hexyloxy) para-phenylene vinylene) light-emitting diodes",

abstract = "We report electroabsorption studies of poly(2-methoxy-5-ethyl(2′-hexyloxy) para-phenylene vinylene) light-emitting diodes. An electric field develops during operation which opposes the field of the applied bias. The counter field builds up within 5 s of turning on the device, increases in magnitude with the operating voltage, and decays exponentially with a time constant between 15 and 32 s. We attribute the counter field to bulk carrier traps and discuss its relevance to the increase of the turn-on voltage as organic light-emitting diodes degrade. {\textcopyright} 1999 American Institute of Physics.",

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AU - Giebeler, C.

AU - Whitelegg, S. A.

AU - Campbell, A. J.

AU - Liess, M.

AU - Martin, S. J.

AU - Lane, P. A.

AU - Bradley, D. D.C.

AU - Webster, G.

AU - Burn, P. L.

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AB - We report electroabsorption studies of poly(2-methoxy-5-ethyl(2′-hexyloxy) para-phenylene vinylene) light-emitting diodes. An electric field develops during operation which opposes the field of the applied bias. The counter field builds up within 5 s of turning on the device, increases in magnitude with the operating voltage, and decays exponentially with a time constant between 15 and 32 s. We attribute the counter field to bulk carrier traps and discuss its relevance to the increase of the turn-on voltage as organic light-emitting diodes degrade. © 1999 American Institute of Physics.

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ER -

Optical studies of electric fields in poly(2-methoxy-5-ethyl (2′-hexyloxy) para-phenylene vinylene) light-emitting diodes

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