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Toward Electrically Pumped Organic Diode Lasers: Electroluminescence of Proton Transfer Polymers

Published online by Cambridge University Press:  10 February 2011

Xuejun Zhang ,
Richard M. Tarkka ,
Samson A. Jenekhe  and
Joseph B. Schlenoff
Xuejun Zhang
Affiliation:
Departments of Chemical Engineering and Chemistry, University of Rochester, Rochester, NY 14627-0166.
Richard M. Tarkka
Affiliation:
Departments of Chemical Engineering and Chemistry, University of Rochester, Rochester, NY 14627-0166.
Samson A. Jenekhe
Affiliation:
Departments of Chemical Engineering and Chemistry, University of Rochester, Rochester, NY 14627-0166.
Joseph B. Schlenoff
Affiliation:
Department of Chemistry, The Florida State University, Tallahassee, FL 32306–3006.
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Abstract

Electroluminescence from a series of polymers and copolymers which exhibit photoinduced excited-state intramolecular proton transfer (ESIPT) is reported. Among these polymers containing ESIPT moieties in the main chain or side chain are poly(1,4-(2-hydroxy)phenylene benzobisthiazole-co-decamethylene benzobisthiazole), poly(styrene-co-3-hydroxy-4′-ethenylflavone) and poly(2,5-benzoxazolediyl(2,2,2,-trifluoro-1-(trifluoromethyl) ethylidene)-5,2-benzoxazolediyl-4-hydroxy-1,3-phenylene). The electroluminescence spectra of these polymers are identical to their photoluminescence spectra, indicating that electroluminecence originates from electrically-generated intramolecular proton transfer (EGIPT). Because electroluminescence from EGIPT implies electrically-induced population inversion, these results demonstrate the possibility of electrically-pumped organic solid-state laser diodes.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 545
Copyright
Copyright © Materials Research Society 1998

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