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Ultra-fast relaxation, decoherence, and localization of photoexcited states in π-conjugated polymers

Abstract:

The exciton relaxation dynamics of photoexcited electronic states in poly(p-phenylenevinylene) (PPV) are theoretically investigated within a coarse-grained model, in which both the exciton and nuclear degrees of freedom are treated quantum mechanically. The Frenkel-Holstein Hamiltonian is used to describe the strong exciton-phonon coupling present in the system, while external damping of the internal nuclear degrees of freedom are accounted for by a Lindblad master equation. Numerically, the ...

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Publication status:
Published
Peer review status:
Peer reviewed
Version:
Publisher's version

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Publisher copy:
10.1063/1.5009393

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Institution:
University of Oxford
Division:
MPLS Division
Department:
Chemistry; Physical & Theoretical Chem
More by this author
Institution:
University of Oxford
Division:
MPLS Division
Department:
Chemistry; Physical & Theoretical Chem
Oxford college:
Balliol College
Al-Assam, S More by this author
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Funding agency for:
Mannouch, JR
Publisher:
AIP Publishing Publisher's website
Journal:
Journal of Chemical Physics Journal website
Volume:
148
Issue:
3
Pages:
Article: 034901
Publication date:
2018-01-16
Acceptance date:
2017-12-15
DOI:
EISSN:
1089-769
ISSN:
0021-9606
Pubs id:
pubs:812569
URN:
uri:fb64facc-f740-4078-8be1-c50f908ef8c1
UUID:
uuid:fb64facc-f740-4078-8be1-c50f908ef8c1
Local pid:
pubs:812569

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