Novel Two-dimensional Semiconductor Monolayer SnP2 with Tunable Bandgap

Conference paper (2019)

Authors

Yingying Zhang Chongqing University
Luqi Tao Chongqing University
Xiandong Li Chongqing University
Guo Qi Zhang Electronic Components, Technology and Materials - EEMCS
Xianping Chen Chongqing University
Research Group
Electronic Components, Technology and Materials (EEMCS) (TU Delft)
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Published Date

01-03-2019

Language

English

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronic Components, Technology and Materials

Abstract

The electronic and mechanical properties of monolayer SnP2 are calculated by density functional theory (DFT), showing that monolayer SnP2 is a quasi-direct semiconductor with a moderate bandgap of 1.44 eV. The phonon dispersion, the molecular dynamics and the strain energy reveal that SnP2 is dynamically, thermally and mechanically stable. Further, the bandgap of SnP2 sheet can be effectively adjusted by applying strain. These results open the door for future applications in catalysis and optoelectronics.

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