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Dynamics of Polarons in Guest-Host-System Polymer Light Emitting Devices

Published online by Cambridge University Press:  10 February 2011

E.J.W. List ,
J. Partee ,
W. Graupner ,
J. Shinar  and
G. Leising
E.J.W. List
Affiliation:
Institut för Festkörperphysik, Technische Universität Graz, A-8010 Graz, Austria
J. Partee
Affiliation:
Ames Laboratory-US. DOE, Iowa State University, Ames, Iowa 50011
W. Graupner
Affiliation:
Institut för Festkörperphysik, Technische Universität Graz, A-8010 Graz, Austria
J. Shinar
Affiliation:
Ames Laboratory-US. DOE, Iowa State University, Ames, Iowa 50011
G. Leising
Affiliation:
Institut för Festkörperphysik, Technische Universität Graz, A-8010 Graz, Austria
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Abstract

The conjugated ladder-type poly(paraphenylene) is an attractive material for blue polymer light emitting devices (PLED). Blending the active layer with small amounts of a red emitting guest polymer, the emission shifts from blue to red with increasing guest concentration due to efficient excitation energy transfer. The results of photoluminescence detected magnetic resonance, electroluminescence detected magnetic resonance measurements and current detected magnetic resonance measurements on PLEDs based on 0.05w%/o - 2w%/o red emitting poly(perylene-co-diethynylbenzene) (PPDB) in the active layer of the PLED are presented and discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 99
Copyright
Copyright © Materials Research Society 1998

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