Luminescence from inter-chain aggregates in polythiophene films

Authors
Ruseckas, A Namdas, E Theander, M Svensson, M Yartsev, A Zigmantas, D Andersson, MR Inganas, O Sundstrom, V
Citation
A. Ruseckas et al., Luminescence from inter-chain aggregates in polythiophene films, SYNTH METAL, 119(1-3), 2001, pp. 603-604
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SYNTHETIC METALS
ISSN journal
03796779 → ACNP
Volume
119
Issue
1-3
Year of publication
2001
Pages
603 - 604
Database
ISI
SICI code
0379-6779(20010315)119:1-3<603:LFIAIP>2.0.ZU;2-L
Abstract
We report time-resolved photoluminescence of two polythiophene derivatives with different chain packing. Emission of inter-chain aggregates is disting uished from that of intra-chain singlet excitons. The aggregate luminescenc e 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 double bondC vibration is S = 1.5. The excitonic coupling in aggregates is of intermediate strength.