International Physics Conference, St. Petersburg, October 23-27, 2023, St. Petersburg

Photoluminescence of Hg$_{0.3}$Cd$_{0.7}$Te and Hg$_{0.7}$Cd$_{0.3}$Te epitaxial films

M. S. Ruzhevich^a, K. J. Mynbaev^ab, N. L. Bazhenov^b, V. S. Varavin^c, V. G. Remesnik^c, N. N. Mikhailov^c, M. V. Yakushev<sup>c

a</sup> ITMO University, 197101 St. Petersburg, Russia
^b Ioffe Institute, 194021 St. Petersburg, Russia
^c Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia

Abstract: The results of a study of photoluminescence (PL) of epitaxial films of Hg$_{0.3}$Cd$_{0.7}$Te and Hg$_{0.7}$Cd$_{0.3}$Te solid solutions grown by molecular beam epitaxy are presented. A comparison of PL data with the results of optical transmission measurements and structural and microscopic studies showed that in terms of the degree of disorder of the solid solution, the studied Hg$_{0.7}$Cd$_{0.3}$Te films are not inferior in quality to the material synthesized by other methods. For Hg$_{0.3}$Cd$_{0.7}$Te films, PL data revealed significant composition fluctuations and the presence of acceptor states, which indicates the need to optimize the technology.

Keywords: solid solutions, HgCdTe, photoluminescence, defects.

Received: 11.05.2023
Revised: 17.07.2023
Accepted: 30.10.2023

DOI: 10.61011/FTP.2023.08.56960.5051C

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