Migrational quenching in a system of centers with cross relaxation |
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| Authors: | A.I. Burshtein V.P. Sakun |
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| Affiliation: | Institute of Chemical Kinetics and Combustion, Novosibirsk, USSR;Institute of Chemical Physics of the Academy of Sciences of the USSR, Moscow, USSR |
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| Abstract: | The concept of quenching pairs is proposed for a system of randomly distributed centers which can quench one another through an energy cross-relaxation mechanism. The formula for the quenching rate is derived for the case of an exciton migrating over the centers. Comparison is made with experimental data for cross-relaxational quenching of the vibrationally excited molecule CH3CCl3. The micro-interaction parameters are estimated to be CDD = 2 × 10?33 cm6/s and CDA = 3 × 10?35 cm6/s. |
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