Spectral diffusion and dissociation of excitons in conjugated polymers

Vladimir I. Arkhipov; Paul L. Heremans; Evgenia V. Emelianova; Heinz Baessler

doi:10.1117/12.546471

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8 September 2004 Spectral diffusion and dissociation of excitons in conjugated polymers

Vladimir I. Arkhipov, Paul L. Heremans, Evgenia V. Emelianova, Heinz Baessler

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Proceedings Volume 5464, Organic Optoelectronics and Photonics; (2004) https://doi.org/10.1117/12.546471
Event: Photonics Europe, 2004, Strasbourg, France

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.

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Vladimir I. Arkhipov, Paul L. Heremans, Evgenia V. Emelianova, and Heinz Baessler "Spectral diffusion and dissociation of excitons in conjugated polymers", Proc. SPIE 5464, Organic Optoelectronics and Photonics, (8 September 2004); https://doi.org/10.1117/12.546471

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