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Portrait of Arkady Yartsev. Photo: Kennet Ruona

Arkady Yartsev

Researcher

Portrait of Arkady Yartsev. Photo: Kennet Ruona

Luminescence from inter-chain aggregates in polythiophene films

Author

  • A. Ruseckas
  • E. Namdas
  • M. Theander
  • M. Svensson
  • Arkady Yartsev
  • Donatas Zigmantas
  • M. R. Andersson
  • O. Inganas
  • Villy Sundström

Summary, in English

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.

Department/s

  • Chemical Physics

Publishing year

2001

Language

English

Pages

603-604

Publication/Series

Synthetic Metals

Volume

119

Issue

1-3

Document type

Journal article

Publisher

Elsevier

Topic

  • Atom and Molecular Physics and Optics

Keywords

  • photoluminescence
  • conjugated polymers
  • time-resolved fast spectroscopy
  • polythiophene and derivatives
  • pairs

Status

Published

ISBN/ISSN/Other

  • ISSN: 0379-6779