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

Grage, Mette LU ; Wood, P W; Ruseckas, A; Pullerits, Tönu LU ; Mitchell, W; Burn, P L; Samuel, I D W and Sundström, Villy LU (2003) In Journal of Chemical Physics 118(16). p.7644-7650
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.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Chemical Physics
volume
118
issue
16
pages
7644 - 7650
publisher
American Institute of Physics
external identifiers
  • wos:000182157700053
  • scopus:0038060688
ISSN
0021-9606
DOI
10.1063/1.1562190
language
English
LU publication?
yes
id
f7757e9a-edab-4376-aa1c-04add4f49fd4 (old id 128152)
date added to LUP
2007-07-03 11:33:17
date last changed
2017-08-27 03:58:08
@article{f7757e9a-edab-4376-aa1c-04add4f49fd4,
  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.},
  author       = {Grage, Mette and Wood, P W and Ruseckas, A and Pullerits, Tönu and Mitchell, W and Burn, P L and Samuel, I D W and Sundström, Villy},
  issn         = {0021-9606},
  language     = {eng},
  number       = {16},
  pages        = {7644--7650},
  publisher    = {American Institute of Physics},
  series       = {Journal of Chemical Physics},
  title        = {Conformational Disorder and Energy Migration in MEH-PPV with Partially Broken Conjugation.},
  url          = {http://dx.doi.org/10.1063/1.1562190},
  volume       = {118},
  year         = {2003},
}