Article ID Journal Published Year Pages File Type
5452934 Computational Condensed Matter 2017 22 Pages PDF
Abstract
With the help of first-principles calculations, we proposed a new type of group IV-VI Two dimensional (2D) semiconductors (XY2, where X = Ge, Sn and Y = S, Se) with promising piezoelectronic properties. Under special point group limit, the spontaneous polarization can be produced perpendicular to the two-dimensional plane by applying in-plane shear strain. More importantly, the electronic structures of them can be effectively modulated by external strain and stacking. Considering their two-dimensional semiconductor nature, they are promising candidates for future miniaturized electronic and optoelectronic devices.
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
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