Tunable electronic properties of an Sb/InSe van der Waals heterostructure by electric field effects

Physical Chemistry Chemical Physics : PCCP
Zhihui ZhangLi Duan

Abstract

The electronic properties of an Sb/InSe heterostructure are investigated by using the density functional theory method. A type-II staggered-gap band alignment is achieved from the Sb/InSe vdW heterostructure with the Sb layer dominates the lowest energy holes as well as the lowest energy electrons are contributed by the InSe layer, which facilitates the spatial effective separation of photogenerated electron-hole pairs. Additionally, an indirect-direct band gap transition can be triggered via varying the interlayer distance. More fascinatingly, the characteristic of type-II band alignment is robust, while the band gap values are tunable with respect to a moderate external electric field, even leading to an intriguing semiconductor-metal transition at a strong electric field. These results are expected to provide meaningful guidelines for the design of novel nanoelectronic and optoelectronic devices based on the Sb/InSe heterostructure.

References

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Aug 5, 2017·Physical Chemistry Chemical Physics : PCCP·Ting HuJinming Dong
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Apr 13, 2018·Physical Chemistry Chemical Physics : PCCP·Yingcai FanMingwen Zhao
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Sep 19, 2018·Physical Chemistry Chemical Physics : PCCP·Song LiAlice Hu

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Citations

Dec 24, 2019·Physical Chemistry Chemical Physics : PCCP·Hao ZhouCong Ye
Feb 29, 2020·Physical Chemistry Chemical Physics : PCCP·Zhihui ZhangLi Duan
Apr 25, 2020·Physical Chemistry Chemical Physics : PCCP·Zhu WangLi Duan
Sep 2, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·P F YuanC Z Wang
Sep 10, 2020·Physical Chemistry Chemical Physics : PCCP·Zhu WangLi Duan
Sep 29, 2020·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Donghui WangShi-Jing Gong
Feb 6, 2021·Physical Chemistry Chemical Physics : PCCP·Jianxun SongDongshan Wei
Jan 9, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Dangqi FangBartomeu Monserrat
Jun 25, 2021·Physical Chemistry Chemical Physics : PCCP·R M MeftakhutdinovD A Evseev

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