UNIGE document Scientific Article
previous document  unige:3255  next document
add to browser collection
Title

Nonequilibrium charge recombination from the excited adiabatic state of donor-acceptor complexes

Authors
Mikhailova, Valentina A.
Ivanov, Anatoly I.
Published in Journal of Chemical Physics. 2004, vol. 121, no. 13, p. 6463-6469
Abstract A model of nonequilibrium charge recombination from an excited adiabatic state of a donor-acceptor complex induced by the nonadiabatic interaction operator is considered. The decay of the excited state population prepared by a short laser pulse is shown to be highly nonexponential. The influence of the excitation pulse carrier frequency on the ultrafast charge recombination dynamics of excited donor-acceptor complexes is explored. The charge recombination rate constant is found to decrease with increasing excitation frequency. The variation of the excitation pulse carrier frequency within the charge transfer absorption band of the complex can alter the effective charge recombination rate by up to a factor 2. The magnitude of this spectral effect decreases strongly with increasing electronic coupling.
Keywords Excited statesIon recombinationCharge exchangeReaction rate constantsPhotoexcitationGround statesVibrational statesPerturbation theoryMolecule-photon collisions
Identifiers
Full text
Structures
Research group Groupe Vauthey
Citation
(ISO format)
MIKHAILOVA, Valentina A., IVANOV, Anatoly I., VAUTHEY, Eric. Nonequilibrium charge recombination from the excited adiabatic state of donor-acceptor complexes. In: Journal of Chemical Physics, 2004, vol. 121, n° 13, p. 6463-6469. https://archive-ouverte.unige.ch/unige:3255

234 hits

0 download

Update

Deposited on : 2009-09-21

Export document
Format :
Citation style :