Luminescence from inter-chain aggregates in polythiophene films

A Ruseckas, E Namdas, M Theander, M Svensson, A Yartsev, D Zigmantas, MR Andersson, O Inganas, Sundstrom

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12 Citations (Scopus)

Abstract

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 double bondC vibration is S = 1.5. The excitonic coupling in aggregates is of intermediate strength.

Original languageEnglish
Pages (from-to)603-604
Number of pages2
JournalSynthetic Metals
Volume119
Issue number1-3
Publication statusPublished - 15 Mar 2001
Event16th International Conference on Science and Technology of Synthetic Metals (ICSM 2000) - GASTEIN, Austria
Duration: 15 Jul 200021 Jul 2000

Keywords

  • photoluminescence
  • time-resolved fast spectroscopy
  • polythiophene and derivatives
  • CONJUGATED POLYMERS
  • PAIRS

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