Kinetics of delayed fluorescence and sensitized phosphorescence of impurity molecular crystals

Authors

  • Deryabin M.I. North-Caucasus Federal University, Stavropol, Russian Federation
  • Erina M.V. North-Caucasus Federal University, Stavropol, Russian Federation

UDC

538.958

DOI:

https://doi.org/10.31429/vestnik-17-1-1-57-61

Abstract

A model of the kinetics of attenuation of heteroannihilation delayed fluorescence and sensitized phosphorescence of impurity organic molecular crystals is proposed. It is shown that this model makes it possible to evaluate the contribution of various mechanisms to the transformation of the energy of triplet excitations in systems when the intrinsic lifetime of nonlocalized triplet excitons of the base is much shorter than the lifetime of localized excitons.

Keywords:

localized and free excitons, lifetime, impurity centers, delayed fluorescence, sensitized phosphorescence

Author Infos

Mihail I. Deryabin

д-р физ.-мат. наук, профессор, ведущий научный сотрудник кафедры общей и теоретической физики Северо-Кавказского федерального университета

e-mail: m.i.deryabin@rambler.ru

Marina V. Erina

канд. физ.-мат. наук, доцент, доцент кафедры общей и теоретической физики Северо-Кавказского федерального университета

e-mail: shishlina@mail.ru

References

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  5. Zhdanova N.V., Dobrovolskaya I.A., Deryabin M.I. Estimate of factors affecting the relative intensity of components of the doublet in the delayed fluorescence spectrum of coronene in n-octane at 77 K.  Journal of Applied Spectroscopy, 2012, vol. 78, pp. 913–917.
  6. Zhdanova N.V., Deryabin M.I. Simulation of the phosphorescence decay kinetics of donor molecules of matrix-isolated donor – acceptor pairs.  Physics of Solid State, 2015, vol. 57, pp. 1827–1830.
  7. Averyushkin A.S.,Vitukhnovskii A.G., Zhevandrov, N.D. Kinetics of sensitized fluorescence and delayed fluorescence of impure molecular crystals.  Bulletin of the Academy of Sciences of the U.S.S.R. Physical series, 1982, vol. 47, pp. 85–89.

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Issue

2020. Vol. 17. No. 1. Part 1

Section

Physics

Pages

57-61

Submitted

2020-02-28

Published

2020-03-31

How to Cite

Deryabin M.I., Erina M.V. Kinetics of delayed fluorescence and sensitized phosphorescence of impurity molecular crystals. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2020, vol. 17, no. 1, pp. 57-61. DOI: https://doi.org/10.31429/vestnik-17-1-1-57-61 (In Russian)

Copyright (c) 2020 Deryabin M.I., Erina M.V.

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