Abstract
Dynamics of electronic excitation energy transfer in the mono- and multilayer Langmuir-Blodgett (LB) films of 5-(4-N-octadecylpyridyl)-10,15,20-tri-p-tolylporphyrin on glass substrate has been investigated by means of picosecond time-resolved fluorescence spectroscopy using a single photon counting technique. The observed decay rate constants for the intra- and interlayer energy transfer are 1.2 × 10 /s and ∼4.0 x 10 9 /s, respectively, which are consistent with the relative fluorescence quantum yield for the LB films on the glass substrate.
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