Multi-Particle Relaxation in Electronically Excited Polymers: Distribution of Transition Rates from Fluorescence Data — A Numerical Approach
Recently, there has been increased activity devoted to understanding the dynamics of electronic excitation in disordered polymeric materials by optical techniques.1,2 Time resolved fluorescence spectroscopy has become a powerful kinetic tool for probing polymer relaxation events in the range of a few picoseconds to some tens of nanoseconds. Typical physical processes in polymer-bound chromophores that have been investigated by transient fluorescence are excitation energy transport, rotational sampling and trap controlled interconversion.3 Among the various transient configurations measuring such short time-profiles, the statistical single-photon time correlation (SPT)4 is the most sensitive and now routinely applied in polymer photophysics.
KeywordsRegularization Parameter Maximum Entropy Method Input Distribution Regularization Function Exponential Series
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