Trap limited exciton transport in conjugated polymers

Stavros Athanasopoulos, Emmanuelle Hennebicq, David Beljonne, Alison Walker

Research output: Contribution to journalArticle

63 Citations (Scopus)

Abstract

A Monte-Carlo approach based on hopping rates computed from quantum-chemical calculations is applied to model the energy diffusion dynamics in a polyindenofluorene conjugated polymer on a predetermined chain morphology. While the model predicts faster time-dependent energy evolution than that seen by site-selective experiments and yields a diffusion length that is an order of magnitude larger than typical experimental values, we show that these discrepancies can be corrected by introducing a low concentration of traps in the transport simulations. Implications for conjugated polymer based opto-electronic devices are discussed.
Original languageEnglish
Pages (from-to)11532-11538
Number of pages7
JournalJournal of Physical Chemistry C
Volume112
Issue number30
DOIs
Publication statusPublished - 2008

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