中国物理B ›› 2020, Vol. 29 ›› Issue (3): 37305-037305.doi: 10.1088/1674-1056/ab6c4e

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Tailoring electronic properties of two-dimensional antimonene with isoelectronic counterparts

Ye Zhang(张也), Huai-Hong Guo(郭怀红), Bao-Juan Dong(董宝娟), Zhen Zhu(朱震), Teng Yang(杨腾), Ji-Zhang Wang(王吉章), Zhi-Dong Zhang(张志东)   

  1. 1 College of Sciences, Liaoning Shihua University, Fushun 113001, China;
    2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    3 Materials Department, University of California, Santa Barbara, CA 93106, USA;
    4 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China;
    5 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • 收稿日期:2019-12-18 修回日期:2020-01-06 出版日期:2020-03-05 发布日期:2020-03-05
  • 通讯作者: Huai-Hong Guo, Bao-Juan Dong, Zhen Zhu, Teng Yang E-mail:hhguo@escience.cn;dongbaojuan.1989@gmail.com;zhuzhen@engineering.ucsb.edu;yangteng@imr.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 51702146), the College Students' Innovation and Entrepreneurship Projects, China (Grant No. 201710148000072), and Liaoning Province Doctor Startup Fund, China (Grant No. 201601325).

Tailoring electronic properties of two-dimensional antimonene with isoelectronic counterparts

Ye Zhang(张也)1, Huai-Hong Guo(郭怀红)1, Bao-Juan Dong(董宝娟)2,4,5, Zhen Zhu(朱震)3, Teng Yang(杨腾)2, Ji-Zhang Wang(王吉章)2, Zhi-Dong Zhang(张志东)2   

  1. 1 College of Sciences, Liaoning Shihua University, Fushun 113001, China;
    2 Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;
    3 Materials Department, University of California, Santa Barbara, CA 93106, USA;
    4 State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China;
    5 Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan 030006, China
  • Received:2019-12-18 Revised:2020-01-06 Online:2020-03-05 Published:2020-03-05
  • Contact: Huai-Hong Guo, Bao-Juan Dong, Zhen Zhu, Teng Yang E-mail:hhguo@escience.cn;dongbaojuan.1989@gmail.com;zhuzhen@engineering.ucsb.edu;yangteng@imr.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 51702146), the College Students' Innovation and Entrepreneurship Projects, China (Grant No. 201710148000072), and Liaoning Province Doctor Startup Fund, China (Grant No. 201601325).

摘要: Using ab initio density functional theory calculations, we explore the three most stable structural phases, namely, α, β, and cubic (c) phases, of two-dimensional (2D) antimonene, as well as its isoelectronic counterparts SnTe and InI. We find that the band gap increases monotonically from Sb to SnTe to InI along with an increase in ionicity, independent of the structural phases. The band gaps of this material family cover the entire visible-light energy spectrum, ranging from 0.26 eV to 3.37 eV, rendering them promising candidates for optoelectronic applications. Meanwhile, band-edge positions of these materials are explored and all three types of band alignments can be achieved through properly combining antimonene with its isoelectronic counterparts to form heterostructures. The richness in electronic properties for this isoelectronic material family sheds light on possibilities to tailor the fundamental band gap of antimonene via lateral alloying or forming vertical heterostructures.

关键词: tailoring electronic properties, two-dimensional antimonene, isoelectronic counterparts

Abstract: Using ab initio density functional theory calculations, we explore the three most stable structural phases, namely, α, β, and cubic (c) phases, of two-dimensional (2D) antimonene, as well as its isoelectronic counterparts SnTe and InI. We find that the band gap increases monotonically from Sb to SnTe to InI along with an increase in ionicity, independent of the structural phases. The band gaps of this material family cover the entire visible-light energy spectrum, ranging from 0.26 eV to 3.37 eV, rendering them promising candidates for optoelectronic applications. Meanwhile, band-edge positions of these materials are explored and all three types of band alignments can be achieved through properly combining antimonene with its isoelectronic counterparts to form heterostructures. The richness in electronic properties for this isoelectronic material family sheds light on possibilities to tailor the fundamental band gap of antimonene via lateral alloying or forming vertical heterostructures.

Key words: tailoring electronic properties, two-dimensional antimonene, isoelectronic counterparts

中图分类号:  (Elemental semiconductors)

  • 73.61.Cw
61.46.-w (Structure of nanoscale materials) 73.22.-f (Electronic structure of nanoscale materials and related systems)