Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/6673
Title: Stable monolayer ?-phase of CdTe: Strain-dependent properties
Authors: Ünsal, Elif
Senger, Ramazan Tuğrul
Şahin, Hasan
Keywords: Cadmium telluride
Cadmium compounds
Optoelectronic devices
Monolayers
Tellurium compounds
Issue Date: 2017
Publisher: Royal Society of Chemistry
Source: Ünsal, E., Senger, R. T., and Şahin, H. (2017). Stable monolayer α-phase of CdTe: Strain-dependent properties. Journal of Materials Chemistry C, 5(46), 12249-12255. doi:10.1039/c7tc04151a
Abstract: CdTe is a well known and widely used binary compound for optoelectronic applications. In this study, we propose the thinnest, free standing monolayer of CdTe which has a tetragonal-PbO (α-PbO) symmetry. The structural, electronic, vibrational and strain dependent properties are investigated by means of first principles calculations based on density functional theory. Our results demonstrate that monolayer α-CdTe is a dynamically stable and mechanically flexible material. It is found that the thinnest monolayer crystal of CdTe is a semiconductor with a direct band gap of 1.95 eV, which corresponds to red light in the visible spectrum. Moreover, it is found that the band gap can be tunable under biaxial strain. With its strain-controllable direct band gap within the visible spectrum, the stable α-phase of monolayer CdTe is a suitable candidate for optoelectronic device applications.
URI: http://doi.org/10.1039/c7tc04151a
http://hdl.handle.net/11147/6673
ISSN: 2050-7534
2050-7526
2050-7534
Appears in Collections:Photonics / Fotonik
Physics / Fizik
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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