The phosphorescence decay kinetics in the presence of a statistical distribution of molecules over the rates of radiative and non-radiative deactivation of triplet excitations
Approximate formulas of phosphorescence decay kinetics under the conditions of the statistical scatter of molecules over rate constants of radiative or non-radiative deactivation of triplet excitation have been obtained. It is shown that the phosphorescence decay function has different form for these two cases. The obtained difference in kinetics was used to establish the reason for the deviation from the exponential law and faster decay of the sensitized phosphorescence of naphthalene and diphenyl in n-paraffin matrices ( T = 77 K) in the presence of heavy atoms in the donor.
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Keywords
non-radiative de-excitation, radiative de-excitation, distribution of molecules, diphenyl, naphthalene, kinetics, sensitized phosphorescenceAuthors
| Name | Organization | |
| Zhdanova N.V. | North-Caucasus Federal University | zhdanova_n@rambler.ru |
| Deryabin M.I. | North-Caucasus Federal University | m.i.deryabin@rambler.ru |
| Erina M.V. | North-Caucasus Federal University | shishlina@mail.ru |
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