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Kinetics of Low-Temperature Microphotoluminescence of Exciton-Impurity Complexes in CdZnTe Single Crystals

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Abstract

Low-temperature (6.5 K) microphotoluminescence near the intrinsic absorption edge of CdZnTe alloy single crystals is studied under conditions of non-resonant and resonant excitation by picosecond pulses. Characteristic relaxation times for free excitons and exciton-impurity complexes of various types are determined. A significant (by a factor of 4–8) decrease in the photoluminescence signal decay time of exciton-impurity complexes on neutral donors during the transition to the resonant excitation mode is detected. The detected sharp decrease in the photoluminescence signal decay time can indicate the manifestation of collective effects in this system of emitters.

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Authors and Affiliations

  1. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    A. A. Pruchkina, S. I. Chentsov, V. S. Krivobok, S. N. Nikolaev, E. E. Onishchenko, V. S. Bagaev & M. L. Skorikov

Authors
  1. A. A. Pruchkina
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  2. S. I. Chentsov
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  3. V. S. Krivobok
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  4. S. N. Nikolaev
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  5. E. E. Onishchenko
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  6. V. S. Bagaev
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  7. M. L. Skorikov
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Corresponding author

Correspondence to A. A. Pruchkina.

Additional information

Original Russian Text © A.A. Pruchkina, S.I. Chentsov, V.S. Krivobok, S.N. Nikolaev, E.E. Onishchenko, V.S. Bagaev, M.L. Skorikov, 2018, published in Kratkie Soobshcheniya po Fizike, 2018, Vol. 45, No. 5, pp. 3–10.

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Pruchkina, A.A., Chentsov, S.I., Krivobok, V.S. et al. Kinetics of Low-Temperature Microphotoluminescence of Exciton-Impurity Complexes in CdZnTe Single Crystals. Bull. Lebedev Phys. Inst. 45, 131–135 (2018). https://doi.org/10.3103/S1068335618050019

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  • DOI: https://doi.org/10.3103/S1068335618050019

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