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- Title
Experimental studies of the effects of atomic ordering in epitaxial GaInP alloys on their optical properties.
- Authors
Seredin, P.; Goloshchapov, D.; Lenshin, A.; Lukin, A.; Khudyakov, Yu.; Arsentyev, I.; Prutskij, Tatiana
- Abstract
The properties of epitaxial GaInP 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 GaInP 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 GaInP alloys with ordering are determined. All of the experimental data are in good agreement with the developed theoretical concepts.
- Subjects
GALLIUM compounds; OPTICAL properties of metals; METAL-organic frameworks; CHEMICAL vapor deposition; OPTICAL properties of semiconductors
- Publication
Semiconductors, 2017, Vol 51, Issue 9, p1111
- ISSN
1063-7826
- Publication type
Article
- DOI
10.1134/S1063782617090196