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Excitonic Luminescence Spectra and Electrical Transport Properties of Photosensitive CdSe Layers Grown on Mica in a Quasi-Closed System

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Abstract—

CdSe layers having high photosensitivity (photocurrent to dark current ratio of 6.2 × 104) and an extremely low carrier concentration (9 × 1011 cm–3) have been grown on muscovite mica by thermal evaporation in a quasi-closed system. These results are of interest for producing materials for position-sensitive semiconductor photodetectors based on CdSe layers. We have demonstrated that the 78-K cathodoluminescence spectra of the cadmium selenide layers grown at 853 K have a single line, corresponding to radiative annihilation of free A-excitons. The spectra of the layers grown at 833 K show a line of free A-excitons and its first phonon replica.

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Authors and Affiliations

  1. Shevchenko State University, MD-3300, Tiraspol, Moldova

    V. I. Chukita, E. A. Senokosov & V. G. Surinov

  2. Faculty of Chemistry, Moscow State University, 119991, Moscow, Russia

    I. N. Odin & M. V. Chukichev

  3. Moscow Institute of Radio Engineering, Electronics, and Automation, Russian Technological University, 119454, Moscow, Russia

    V. S. Feshchenko

Authors
  1. V. I. Chukita
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  2. E. A. Senokosov
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  3. V. G. Surinov
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  4. I. N. Odin
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  5. M. V. Chukichev
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  6. V. S. Feshchenko
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Correspondence to I. N. Odin.

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Translated by O. Tsarev

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Chukita, V.I., Senokosov, E.A., Surinov, V.G. et al. Excitonic Luminescence Spectra and Electrical Transport Properties of Photosensitive CdSe Layers Grown on Mica in a Quasi-Closed System. Inorg Mater 57, 669–673 (2021). https://doi.org/10.1134/S0020168521070037

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  • DOI: https://doi.org/10.1134/S0020168521070037

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