On a shape of band-to-acceptor luminescence line in semiconductors

I. A. Kokurin; Кокурин И. А.; N. S. Averkiev; Аверкиев Н. С.

doi:10.31857/S0367676523701478

On a shape of band-to-acceptor luminescence line in semiconductors

Authors: Kokurin I.A.¹^,2, Averkiev N.S.¹
Affiliations:
1. Ioffe Physical-Technical Institute of the Russian Academy of Sciences
2. National Research Ogarev Mordovia State University
Issue: Vol 87, No 6 (2023)
Pages: 849-854
Section: Articles
URL: https://ruspoj.com/0367-6765/article/view/654384
DOI: https://doi.org/10.31857/S0367676523701478
EDN: https://elibrary.ru/VLVYLH
ID: 654384

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Abstract

A theoretical explanation is proposed for the shape of the long-wavelength edge of the luminescence line, which is caused by the recombination of a free electron and a hole of a neutral acceptor. The formation of complexes, in which a single hole is localized by the field of two attracting ions ( $A_{2}^{-}$ complexes) and the subsequent recombination of holes in such complexes with electrons of the conduction band are considered. The Coulomb repulsion in the final state after recombination and the dispersion of the complexes in terms of the interionic distance provide an extended long-wavelength tail of the luminescence line, comparable in magnitude to the ionization energy of a single acceptor.

About the authors

I. A. Kokurin

Ioffe Physical-Technical Institute of the Russian Academy of Sciences; National Research Ogarev Mordovia State University

Author for correspondence.
Email: ivan.a.kokurin@gmail.com
Russia, 194021, St. Petersburg,; Russia, 430005, Saransk

N. S. Averkiev

Ioffe Physical-Technical Institute of the Russian Academy of Sciences

Email: ivan.a.kokurin@gmail.com
Russia, 194021, St. Petersburg,

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