Förster Resonance Energy Transfer and Trapping in Selected Systems: Analysis by Monte-Carlo Simulation

Local Dye Concentration and Spectroscopic Properties of Monomer–Aggregate Systems in Hybrid Porous Nanolayers

“…It means that in the system studied both energy transfer from monomer to aggregate and the reverse energy transfer from aggregates to monomers can take place. 18,36 On the basis of the measured absorption and fluorescence spectra and their analysis the values of critical parameters describing energy transfer in both types of matrices were determined Mention should be made that the dimer fluorescence peak positions in Figure 1, parts A and B (panels on the right) have been obtained from steady-state spectra from decomposition of the total fluorescence spectrum into real monomer spectrum and assumed fluorescence dimer (Gauss distribution function). Since the quality of the fluorescence signal in this type of experiment is quite good the derivation of the peak position is not very complex.…”

Resonance energy transfer between FMN molecules in the presence of dimers: A review

“…Besides standard observables such as: donor and acceptor fluorescence decay, relative donor fluorescence quantum yield, emission anisotropy and average time of fluorescence decay; nonmeasurable observables such as the number of non-radiative excitation energy acts or average range of excitation energy displacement can be simulated. Monte Carlo simulations provide the possibility of modelling a variety of physical systems and to explore the NET process between molecules [185]. In studies of FMN, Monte Carlo simulations confirmed the validity of the HM with RET and SCDM, respectively.…”

“…They are a perfect tool to gain profound insight into the mechanism of energy transfer [185] and enable to verify various theoretical models. In this method the time development of excitation energy transport between molecules and average values of photoluminescence observables are simulated on the basis of the master equation describing the dynamics of excitation in the examined systems.…”

Determination of Local Dye Concentration in Hybrid Porous Silica Thin Films

“…Additionally, the emission spectrum of the acceptor is, in the case studied, well separated from donor absorption so that the reverse energy transfer from excited acceptors back to the donor set can be neglected. 19,22 Nowadays a lot of attention is paid to such media in which fluorophores are not uniformly distributed, but are organized in a specific way. In such a case, the description of multistep energy transfer and trapping is even far more complex, and it can not be directly expressed in terms of analytical theories.…”

“…Therefore, the estimation of such a local concentration is crucial to understand important photophysical processes such as, for example, energy transfer or molecular aggregation (that are strongly concentration-dependent , ) taking place at distances smaller than or comparable to the linear dimensions of the cage.…”