Chapter 7. Exciton Energy Relaxation and Dissociation in Pristine and Doped Conjugated Polymers

  1. Prof. Dr. Wolfgang Brütting
  1. V. I. Arkhipov1,
  2. H. Bässler2

Published Online: 13 FEB 2006

DOI: 10.1002/3527606637.ch7

Book Title

Physics of Organic Semiconductors

Physics of Organic Semiconductors

Additional Information

How to Cite

Arkhipov, V. I. and Bässler, H. (2006) Exciton Energy Relaxation and Dissociation in Pristine and Doped Conjugated Polymers, in Physics of Organic Semiconductors (ed W. Brütting), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606637.ch7

Editor Information

  1. Institute of Physics, University of Augsburg, Germany

Author Information

  1. 1

    IMEC, Heverlee-Leuven, Belgium

  2. 2

    Institute of Physical, Nuclear and Macromolecular Chemistry, Universität Marburg, Germany

Publication History

  1. Published Online: 13 FEB 2006
  2. Published Print: 9 MAY 2005

ISBN Information

Print ISBN: 9783527405503

Online ISBN: 9783527606634

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CHAPTER TOOLS

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Keywords:

  • physics of organic semiconductors;
  • photophysics;
  • exciton energy relaxation;
  • conjugated polymers;
  • field-induced exciton dissociation;
  • luminescence quenching;
  • photoconductivity;
  • photoconductivity in polymer donor/acceptor blends

Summary

This chapter contains sections titled:

  • Introduction

  • Field-induced exciton dissociation probed by luminescence quenching

    • Steady state fluorescence quenching

    • Time resolved fluorescence quenching

    • A model of field-assisted dissociation of optical excitations

  • Exciton dissociation in doped conjugated polymers

    • Experiments on photoluminescence quenching in doped polymers

    • Exciton energy relaxation and quenching by Förster energy transfer

    • Exciton quenching at charge transfer centers

  • Photoconductivity in pristine and weakly doped polymers

    • Intrinsic photogeneration

    • Dopant assisted photogeneration

    • A model of dopant-assisted charge photogeneration

  • Photoconductivity in polymer donor/acceptor blends

    • Enhanced exciton dissociation at high concentration of electron acceptors

    • A model of efficient exciton dissociation at a donor/acceptor interface

  • Conclusions

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