Motional narrowing effect in one-dimensional Frenkel chains with configurational disorder
@article{Malyshev1999MotionalNE, title={Motional narrowing effect in one-dimensional Frenkel chains with configurational disorder}, author={Victor A. Malyshev and Francisco Dom{\'i}nguez-Adame}, journal={Chemical Physics Letters}, year={1999}, volume={313}, pages={255-260} }
20 Citations
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The density of states, even for a perfectly ordered tight-binding model, can exhibit a tail-like feature at the top of the band, provided the hopping integral falls off in space slowly enough. We…
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Exchange narrowing in circular and cylindrical molecular aggregates: degenerate versus nondegenerate states
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Coherent-potential-approximation study of excitonic absorption in orientationally disordered molecular aggregates
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We study the dynamics of a single Frenkel exciton in a disordered molecular chain. The coherent-potential approximation is applied to the situation where the single-molecule excitation energies as…
One-dimensional J-aggregates: Dependence of the properties of the exciton band on the model of the intermolecular coupling
- Chemistry, Physics
- 2002
Quantum coherence and disorder-specific effects in simulations of 2D optical spectra of one-dimensional J-aggregates.
- Physics, ChemistryThe journal of physical chemistry. A
- 2011
Time-resolved two-dimensional photon-echo spectra of linear J-aggregates containing four molecules per unit cell--a model system for a concentrated water solution of the pseudo-isocyanine dye--is theoretically considered and possibilities of probing quantum coherences, as well as performing quantum control via two-color 2D PE spectroscopy, are discussed.
Unraveling intra-aggregate structural disorder using single-molecule spectroscopy.
- PhysicsThe Journal of chemical physics
- 2020
A Frenkel exciton model is exploited to show that the experimentally observed correlation of linewidths and other statistical properties of the single-aggregate spectra can be explained from small variations of the molecular orientations within individual aggregates.
Exchange narrowing of the J band of molecular dye aggregates.
- PhysicsThe Journal of chemical physics
- 2008
A unified theory incorporating the two approaches is presented, which shows that the origins of the narrowing are different and features of both narrowing mechanisms are evident.
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