中国物理B ›› 2021, Vol. 30 ›› Issue (7): 76801-076801.doi: 10.1088/1674-1056/abe29d

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Strain-tunable electronic and optical properties of h-BN/BC3 heterostructure with enhanced electron mobility

Zhao-Yong Jiao(焦照勇)1, Yi-Ran Wang(王怡然)1, Yong-Liang Guo(郭永亮)1,2, and Shu-Hong Ma(马淑红)1,†   

  1. 1 School of Physics, Henan Normal University, Xinxiang 453007, China;
    2 School of Science, Henan Institute of Technology, Xinxiang 453003, China
  • 收稿日期:2020-11-24 修回日期:2021-01-15 接受日期:2021-02-03 出版日期:2021-06-22 发布日期:2021-06-26
  • 通讯作者: Shu-Hong Ma E-mail:mash.phy@htu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11904081) and the Natural Science Foundation of Henan Province, China (Grant Nos. 202300410247 and 21A140013).

Strain-tunable electronic and optical properties of h-BN/BC3 heterostructure with enhanced electron mobility

Zhao-Yong Jiao(焦照勇)1, Yi-Ran Wang(王怡然)1, Yong-Liang Guo(郭永亮)1,2, and Shu-Hong Ma(马淑红)1,†   

  1. 1 School of Physics, Henan Normal University, Xinxiang 453007, China;
    2 School of Science, Henan Institute of Technology, Xinxiang 453003, China
  • Received:2020-11-24 Revised:2021-01-15 Accepted:2021-02-03 Online:2021-06-22 Published:2021-06-26
  • Contact: Shu-Hong Ma E-mail:mash.phy@htu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11904081) and the Natural Science Foundation of Henan Province, China (Grant Nos. 202300410247 and 21A140013).

摘要: By using first-principles calculation, we study the properties of h-BN/BC3 heterostructure and the effects of external electric fields and strains on its electronic and optical properties. It is found that the semiconducting h-BN/BC3 has good dynamical stability and ultrahigh stiffness, enhanced electron mobility, and well-preserved electronic band structure as the BC3 monolayer. Meanwhile, its electronic band structure is slightly modified by an external electric field. In contrast, applying an external strain can mildly modulate the electronic band structure of h-BN/BC3 and the optical property exhibits an apparent redshift under a compressive strain relative to the pristine one. These findings show that the h-BN/BC3 hybrid can be designed as optoelectronic device with moderately strain-tunable electronic and optical properties.

关键词: heterostructure, electronic and optical properties, first-principles calculation

Abstract: By using first-principles calculation, we study the properties of h-BN/BC3 heterostructure and the effects of external electric fields and strains on its electronic and optical properties. It is found that the semiconducting h-BN/BC3 has good dynamical stability and ultrahigh stiffness, enhanced electron mobility, and well-preserved electronic band structure as the BC3 monolayer. Meanwhile, its electronic band structure is slightly modified by an external electric field. In contrast, applying an external strain can mildly modulate the electronic band structure of h-BN/BC3 and the optical property exhibits an apparent redshift under a compressive strain relative to the pristine one. These findings show that the h-BN/BC3 hybrid can be designed as optoelectronic device with moderately strain-tunable electronic and optical properties.

Key words: heterostructure, electronic and optical properties, first-principles calculation

中图分类号:  (Solid surfaces and solid-solid interfaces: structure and energetics)

  • 68.35.-p
68.35.Gy (Mechanical properties; surface strains) 68.65.-k (Low-dimensional, mesoscopic, nanoscale and other related systems: structure and nonelectronic properties)