Conformational Disorder and Energy Migration in MEH-PPV with Partially Broken Conjugation.

Mette Grage, P W Wood, A Ruseckas, Tönu Pullerits, W Mitchell, P L Burn, I D W Samuel, Villy Sundström

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93 Citations (SciVal)

Abstract

In order to obtain a better understanding of the role of conformational disorder in the photophysics of conjugated polymers the ultrafast transient absorption anisotropy of partially deconjugated MEH-PPV has been measured. These data have been compared to the corresponding kinetics of Monte Carlo–simulated polymer chains, and estimates of the energy hopping time and energy migration distances for the polymers have been obtained. We find that the energy migration in the investigated MEH-PPV is approximately 3 times faster than in previously studied polythiophenes. We attribute this to a more disordered chain conformation in MEH-PPV. ©2003 American Institute of Physics.
Original languageEnglish
Pages (from-to)7644-7650
JournalJournal of Chemical Physics
Volume118
Issue number16
DOIs
Publication statusPublished - 2003

Bibliographical note

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Chemical Physics (S) (011001060)

Subject classification (UKÄ)

  • Atom and Molecular Physics and Optics

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