Experimental studies of the effects of atomic ordering in epitaxial GaxIn1 – xP alloys on their optical properties
- Authors: Seredin P.V.1, Goloshchapov D.L.1, Lenshin A.S.1, Lukin A.N.1, Khudyakov Y.Y.1, Arsentyev I.N.2, Prutskij T.3
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Affiliations:
- Voronezh State University
- Ioffe Institute
- Instituto de Cienscias
- Issue: Vol 51, No 9 (2017)
- Pages: 1111-1118
- Section: Electronic Properties of Semiconductors
- URL: https://journals.rcsi.science/1063-7826/article/view/201080
- DOI: https://doi.org/10.1134/S1063782617090196
- ID: 201080
Cite item
Abstract
The properties of epitaxial GaxIn1 – xP alloys with an ordered arrangement of atoms in the crystal lattice are studied by a number of spectroscopic methods. The alloys are grown by metal-organic chemical vapor deposition onto single-crystal GaAs(100) substrates. It is shown that, under conditions of the coherent growth of an ordered GaxIn1 – xP alloy on a GaAs(100) substrate, atomic ordering results in radical modifications of the optical properties of the semiconductor compared to the properties of disordered alloys. Among these modifications are a decrease in the band gap and an increase in the luminescence intensity. From the data of dispersion analysis of the infrared dispersion spectra and from ultraviolet spectroscopy data obtained in the transmittance–reflection mode of measurements, the basic optical characteristics, specifically, the dispersion of the refractive index and the high-frequency permittivity of GaxIn1 – xP alloys with ordering are determined. All of the experimental data are in good agreement with the developed theoretical concepts.
About the authors
P. V. Seredin
Voronezh State University
Author for correspondence.
Email: paul@phys.vsu.ru
Russian Federation, Voronezh, 394006
D. L. Goloshchapov
Voronezh State University
Email: paul@phys.vsu.ru
Russian Federation, Voronezh, 394006
A. S. Lenshin
Voronezh State University
Email: paul@phys.vsu.ru
Russian Federation, Voronezh, 394006
A. N. Lukin
Voronezh State University
Email: paul@phys.vsu.ru
Russian Federation, Voronezh, 394006
Yu. Yu. Khudyakov
Voronezh State University
Email: paul@phys.vsu.ru
Russian Federation, Voronezh, 394006
I. N. Arsentyev
Ioffe Institute
Email: paul@phys.vsu.ru
Russian Federation, St. Petersburg, 194021
Tatiana Prutskij
Instituto de Cienscias
Email: paul@phys.vsu.ru
Mexico, Puebla, Pue., 72050