Abstract

Molecular association of pyrene in the Langmuir-Blodgett (LB) monolayer film has been studied with a picosecond time-resolved fluorescence spectrophotometer. In higher concentrations of pyrene chromophores, fluorescence from the ground-state dimer is dominant in the initial time region (0-100 ps). The pyrene excimer in the LB film is formed from the ground-state dimer.

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