High photoluminescence efficiency in substituted polythiophene aggregates
2003 (English)In: Synthetic metals, ISSN 0379-6779, Vol. 139, no 2, 303-310 p.Article in journal (Refereed) Published
In this paper we discuss the optical (absorption and photoluminescence) and solvatochromic properties of a newly synthesized alternating copolymer based on poly(3-alkylthiophene) structure. In this copolymer an unsubstituted thiophene ring is linked to a 3-alkyl-substituted thiophene, the two repeating units being alternated in the copolymer chains. Moreover, a bulky group, THP, with high steric hindrance has been introduced in the side chain. This copolymer, designed to preserve the backbone planarity of polythiophenes and to prevent a close packing arrangement through the non-regioregular insertion of the bulky substituted monomer, shows high PL quantum yield in the solid state and in solution aggregates. The electroluminescence of this copolymer is reported for a simple single layer device. © 2003 Elsevier Science B.V. All rights reserved.
Place, publisher, year, edition, pages
2003. Vol. 139, no 2, 303-310 p.
Aggregates, Alternating copolymers, Electroluminescence, Photoluminescence
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-46490DOI: 10.1016/S0379-6779(03)00171-1OAI: oai:DiVA.org:liu-46490DiVA: diva2:267386