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Proceedings Paper

Spectral diffusion and dissociation of excitons in conjugated polymers
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Paper Abstract

A model of exciton quenching in disordered organic materials is formulated. The model considers the quenching as a diffusion-limited process with the diffusion rate being controlled by energetic relaxation of excitons within the inhomogeneously broadened excitonic density of states. The calculated dependence of the radiative exciton decay rate upon the trap density is used in order to fit experimental data on the trap-induced photoluminescence quenching in methyl-substituted planarized poly-para-phenylene and in alkoxy-substituted poly-phenylenevinylene.

Paper Details

Date Published: 8 September 2004
PDF: 7 pages
Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); doi: 10.1117/12.546471
Show Author Affiliations
Vladimir I. Arkhipov, IMEC (Belgium)
Paul L. Heremans, IMEC (Belgium)
Evgenia V. Emelianova, Katholieke Univ. Leuven (Belgium)
Heinz Baessler, Philipps-Univ. Marburg (Germany)

Published in SPIE Proceedings Vol. 5464:
Organic Optoelectronics and Photonics
Paul L. Heremans; Michele Muccini; Hans Hofstraat, Editor(s)

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