Abstract
The stability and electronic and optical properties of two-dimensional (2D)
SnTe
monolayer has been systematically studied by using first-principles calculations based on density functional theory. Our computations demonstrate that the predicted 2D
SnTe
monolayer is a stable quasi-direct semiconductor. Also, analysis of its electronic property shows that the ground state of this monolayer is a quasi-direct semiconductor with a band gap of ~2.00. This band gap can be effectively modulated by external strains
.
Investigation of optical properties shows that monolayer
SnTe
exhibits significant absorption and reflectivity in the ultraviolet region of the electromagnetic spectrum.
Graphical abstract