Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5452934 | Computational Condensed Matter | 2017 | 22 Pages |
Abstract
With the help of first-principles calculations, we proposed a new type of group IV-VI Two dimensional (2D) semiconductors (XY2, where XÂ =Â Ge, Sn and YÂ =Â 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)
Authors
C.G. Tan, Pan Zhou, J.G. Lin, L.Z. Sun,