Tunable optical and electronic properties of Janus monolayers Ga2SSe, Ga2STe, and Ga2SeTe as promising candidates for ultraviolet photodetectors applications

• Published in: Superlattices and microstructures Vol. 125; pp. 1 - 7
• Main Authors: Bui, Hoi D., Jappor, Hamad Rahman, Hieu, Nguyen N.
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.01.2019
• Subjects: Electronic and optical properties; Janus Ga2STe, Ga2STe, and Ga2SeTe monolayers; Photovoltaic absorbers; UV detectors; Photovoltaic absorbers; Janus Ga2STe, Ga2STe, and Ga2SeTe monolayers; UV detectors; Electronic and optical properties

Janus Ga2STe, Ga2STe, and Ga2SeTe monolayers have been designed composed of GaS, GaSe, and GaTe monolayers and study their electronic and optical properties using the density functional theory. Interestingly, our results revealed that the Ga2STe and Ga2SeTe have desirable direct band gaps of 0.90 an...