Abstract

A model for radiative transport of electronic excitation energy in solution is presented and applied to the time-resolved and steady-state fluorescence of DPA (9, 10-diphenylanthracene) in benzene. The model predicts a nonexponential and wavelength-dependent decay at high concentrations, in agreement with experimental results. Recovered parameters, along with the time-resolved emission spectrum, are interpreted on the basis of a progression of the excitation with time farther into the cell, after the excitation pulse.

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