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2002, № 3



Kucherenko M.G., Gunkov V.V., Chmereva T.M. OXYGEN-DEPENDENT PHOTOREACTION KINETICS IN LANGMUIR-BLODGETT MONOMOLECULAR FILM The cross-annihilation kinetics of delayed fluorescence of organic molecules is investigated in surfactant monolayer (Langmuir-Blodgett technology) interfaced with the air. New features of the mathematical model of molecular process are considered when the theory gains an details of the oxygen diffusion transport in LB-film. The analysis of the luminescence pulse form is made on a bases of O2 sorption-desorption and oxygen lateral diffusion model in the film. The delayed fluorescence intensity is used as basic observed value and it built on the base of pair distribution function, taking into account the desorbtion of O2 molecules into gas phase. The oxygen desorbtion is considered or as one-step quantum process, or as thermoactivation transition through an potential barrier like Kramers theory approach.

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Authors: Kucherenko M.G., Gunkov V.V., Chmereva T.M.

Year: 2002


Editor-in-chief
Sergey Aleksandrovich
MIROSHNIKOV

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