ELECTRONIC STRUCTURE AND OPTICAL PROPERTIES OF TWO-DIMENSIONAL CRYSTALS OF SnS
Abstract
The electronic band spectra and the optical properties of 2D crystals of tin sulfide (SnS) were investigated by means of ab initio simulation. Low-temperature (α-SnS) and high-temperature (β- SnS) phases in the form of 2D crystals were considered. All compounds were found to be semiconductors. Their band gaps decrease upon increasing the number of monolayers approaching the values of bulk materials. Calculated reflection coefficients of the structures studied are lower than in bulk materials, and the light absorption coefficient has the same order of magnitude as in bulk SnS and GaAs.
About the Authors
V. L. SHAPOSHNIKOV
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
A. V. KRIVOSHEEVA
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
V. E. BORISENKO
Belarusian State University of Informatics and Radioelectronics
Belarus
Belarus
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