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High luminescence from a substituted polythiophene in a solvent with low solubility
Department of Polymer Technology, Chalmers Univ. of Technol., S-412 96, Göteborg, Sweden.
Department of Chemical Physics, Lund University, S-221 00, Lund, Sweden.
Department of Chemical Physics, Lund University, S-221 00, Lund, Sweden.
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2001 (English)In: Chemical Physics Letters, ISSN 0009-2614, E-ISSN 1873-4448, Vol. 337, no 4-6, 277-283 p.Article in journal (Refereed) Published
Abstract [en]

Steady-state and time-resolved photoluminescence (PL) is used to probe different states of order in highly regular poly(3-(2'-methoxy-5'-octylphenyl)thiophene) (POMeOPT). In a good solvent (chloroform) the polymer has a PL yield of 0.33 and in a solvent with low solubility (mixture of chloroform and toluene) a new phase appears with higher PL yield (0.50). The new phase is attributed to micro-crystals formed by the regular part of the polymer which have low solubility in toluene. The crystallites have highly structured and redshifted electronic transitions compared with chains which are dissolved.

Place, publisher, year, edition, pages
2001. Vol. 337, no 4-6, 277-283 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47418DOI: 10.1016/S0009-2614(01)00208-1OAI: oai:DiVA.org:liu-47418DiVA: diva2:268314
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Inganäs, Olle

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