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Luminescence from inter-chain aggregates in polythiophene films
Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden.
Department of Chemical Physics, Lund University, Box 124, S-221 00 Lund, Sweden.
Dept. of Organ. Chem. and Polymer T., Chalmers University of Technology, S-412 96 Göteborg, Sweden.
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2001 (English)In: Synthetic metals, ISSN 0379-6779, E-ISSN 1879-3290, Vol. 119, no 1-3, 603-604 p.Article in journal (Refereed) Published
Abstract [en]

We report time-resolved photoluminescence of two polythiophene derivatives with different chain packing. Emission of inter-chain aggregates is distinguished from that of intra-chain singlet excitons. The aggregate luminescence is shifted towards lower energies relative to that of intra-chain exciton by 0.17 eV, and the Huang-Rhys factor of the coupling to the intra-chain C=C vibration is S = 1.5. The excitonic coupling in aggregates is of intermediate strength.

Place, publisher, year, edition, pages
2001. Vol. 119, no 1-3, 603-604 p.
Keyword [en]
Photoluminescence, Polythiophene and derivatives, Time-resolved fast spectroscopy
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47448DOI: 10.1016/S0379-6779(00)00721-9OAI: oai:DiVA.org:liu-47448DiVA: diva2:268344
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Inganäs, Olle

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