Exciton diffusion and dissociation in conjugated polymer/fullerene heterostructures

D.E. Markov, E. Amsterdam, P.W.M. Blom, A.B. Sieval, J.C. Hummelen

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Time-resolved luminescence spectroscopy has been used to investigate exciton diffusion in thin films of poly(p-phenylene vinylene) (PPV) based derivatives. Exciton density distribution upon photoexcitation in polymer/fullerene heterostructures has been modeled and exciton diffusion length values of 5 nm and 6 nm are estimated for two different PPV derivatives, which differ by three orders of magnitude in charge carrier mobility due to reduced energetic disorder. Hence, the exciton diffusion length is not correlated to the charge carrier mobility in this class of materials.

Original languageEnglish
Title of host publicationORGANIC OPTOELECTRONICS AND PHOTONICS
EditorsPL Heremans, M Muccini, H Hofstraat
Place of PublicationBELLINGHAM
PublisherSPIE - INT SOC OPTICAL ENGINEERING
Pages449 - 454
Number of pages6
Volume5464
ISBN (Print)0-8194-5387-0
DOIs
Publication statusPublished - 2004
EventConference on Organic Optoelectronics and Photonics - , France
Duration: 28-Apr-200430-Apr-2004

Publication series

NamePROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS (SPIE)
PublisherSPIE-INT SOC OPTICAL ENGINEERING
Volume5464
ISSN (Print)0277-786X

Other

OtherConference on Organic Optoelectronics and Photonics
CountryFrance
Period28/04/200430/04/2004

Keywords

  • conjugated polymer
  • exciton diffusion
  • charge transport
  • BUCKMINSTERFULLERENE
  • HETEROJUNCTION
  • ELECTRON
  • POLYMERS
  • DEVICES
  • CELLS
  • C-60

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