Type-II tunable SiC/InSe heterostructures under an electric field and biaxial strain

Literature Information

Publication Date 2020-04-06
DOI 10.1039/D0CP00291G
Impact Factor 3.676
Authors

Zhu Wang, Yan Zhang, Xing Wei, Tingting Guo, Jibin Fan, Lei Ni, Yijun Weng, Zhengdi Zha, Jian Liu, Ye Tian, Ting Li, Li Duan


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Abstract

In this study, first-principles calculations based on the density functional theory (DFT) are exploited to investigate the electronic capabilities of SiC/InSe heterostructures. According to our results, the SiC/InSe heterostructure possesses an inherent type-II band alignment, which displays a noticeable Stark effect on the band gap under a stable electric field. Besides, the heterostructure exhibits a low carrier effective mass and a narrower band gap when it is subject to tensile strain. More interestingly, the transition from an indirect to a direct band gap occurs when 8% of compressive strain is applied. Taken together, findings in this study indicate that the SiC/InSe heterostructure opens up a new avenue for its application in the fields of optoelectronics and microelectronics.

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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

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