In molecular J-aggregates one often observes an increase of the fluorescence decay time when increasing the temperature from 0 K. This phenomenon is usually attributed to the thermal population of the dark Frenkel exciton states that lie above the superradiant bottom state of the exciton band. In this paper, we study this effect for a homogeneous one-dimensional aggregate in a host medium and we model the scattering between different exciton states as arising from their coupling to the host vibrations. A Pauli master equation is used to describe the redistribution of excitons over the band. The rates entering this equation are calculated within the framework of first-order perturbation theory, assuming a linear on-site interaction between e...
We present a theoretical analysis of low-temperature quenching of one-dimensional Frenkel excitons t...
Results of temperature dependent accumulated photon echo, fluorescence lifetime and fluorescence qua...
Using a model of Frenkel excitons coupled to a bath of acoustic phonons in the host medium, we study...
In molecular J-aggregates one often observes an increase of the fluorescence decay time when increas...
We calculate the temperature dependence of the fluorescence decay of a 1D localized Frenkel exciton ...
We calculate the temperature dependence of the fluorescence Stokes shift and the fluorescence decay ...
We report temperature-dependent steady-state and time-resolved fluorescence studies to probe the exc...
We report temperature-dependent steady-state and time-resolved fluorescence studies to probe the exc...
We report temperature-dependent steady-state and time-resolved fluorescence studies to probe the exc...
This article reports on the optical dynamics in aggregates of pseudoisocyanine-bromide and iodide. F...
We theoretically analyze the excitation energy transfer between two closely spaced linear molecular ...
We model the optical dynamics in linear Frenkel exciton systems governed by scattering on static dis...
We theoretically study the temperature dependence of the J-band width in disordered linear molecular...
We model the optical dynamics in linear Frenkel exciton systems governed by scattering on static dis...
We study theoretically the diffusion of one-dimensional Frenkel excitons in J-aggregates at temperat...
We present a theoretical analysis of low-temperature quenching of one-dimensional Frenkel excitons t...
Results of temperature dependent accumulated photon echo, fluorescence lifetime and fluorescence qua...
Using a model of Frenkel excitons coupled to a bath of acoustic phonons in the host medium, we study...
In molecular J-aggregates one often observes an increase of the fluorescence decay time when increas...
We calculate the temperature dependence of the fluorescence decay of a 1D localized Frenkel exciton ...
We calculate the temperature dependence of the fluorescence Stokes shift and the fluorescence decay ...
We report temperature-dependent steady-state and time-resolved fluorescence studies to probe the exc...
We report temperature-dependent steady-state and time-resolved fluorescence studies to probe the exc...
We report temperature-dependent steady-state and time-resolved fluorescence studies to probe the exc...
This article reports on the optical dynamics in aggregates of pseudoisocyanine-bromide and iodide. F...
We theoretically analyze the excitation energy transfer between two closely spaced linear molecular ...
We model the optical dynamics in linear Frenkel exciton systems governed by scattering on static dis...
We theoretically study the temperature dependence of the J-band width in disordered linear molecular...
We model the optical dynamics in linear Frenkel exciton systems governed by scattering on static dis...
We study theoretically the diffusion of one-dimensional Frenkel excitons in J-aggregates at temperat...
We present a theoretical analysis of low-temperature quenching of one-dimensional Frenkel excitons t...
Results of temperature dependent accumulated photon echo, fluorescence lifetime and fluorescence qua...
Using a model of Frenkel excitons coupled to a bath of acoustic phonons in the host medium, we study...