Photophysics of a poly(phenylenevinylene) with alternating meta-phenylene and para-phenylene rings
Citation:
Lane, PA, Cadby, AJ, Mellor, H, Martin, SJ, Lidzey, DG, Bradley, DDC, Lipson, SM, O'Brien, DF, Blau, WJ, Photophysics of a poly(phenylenevinylene) with alternating meta-phenylene and para-phenylene rings, Physical Review B - Condensed Matter and Materials Physics, 62, 2000, 15718 15723Download Item:
Abstract:
We have investigated the photophysics of the luminescent polymer poly
~
1,3-phenylenevinylene-
alt
-2,5-
dioctyloxy-1,4-phenylenevinylene
!
by a variety of optical spectroscopies. The incorporation of alternating
meta
-phenylene and
para
-phenylene rings restricts conjugation with respect to poly
~
para
-phenylenevinylene
!
derivatives. As a consequence, excited states are blueshifted and the nonlinear susceptibility is reduced. Ab-
sorption by aggregates, which can be obscured by scattering and interference, is clearly revealed by electro-
absorption spectroscopy. The reduced symmetry of 1,3-PPV modifies optical selection rules, resulting in strong
overlap of the fluorescence spectrum with excited state absorption by charged polarons.
Author's Homepage:
http://people.tcd.ie/wblauDescription:
PUBLISHED
Author: BLAU, WERNER
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Journal ArticleCollections
Series/Report no:
Physical Review B - Condensed Matter and Materials Physics;62;
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luminescent polymerMetadata
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