中国物理B ›› 2016, Vol. 25 ›› Issue (3): 37104-037104.doi: 10.1088/1674-1056/25/3/037104

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Tunable localized surface plasmon resonances in one-dimensional h-BN/graphene/h-BN quantum-well structure

Kaibiao Zhang(张开彪), Hong Zhang(张红), Xinlu Cheng(程新路)   

  1. 1. Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
    2. School of Science, Sichuan University of Science and Engineering, Zigong 643000, China;
    3. College of Physical Science and Technology, Sichuan University, Chengdu 610065, China;
    4. Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, China
  • 收稿日期:2015-08-18 修回日期:2015-10-07 出版日期:2016-03-05 发布日期:2016-03-05
  • 通讯作者: Hong Zhang E-mail:hongzhang@scu.edu.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11474207 and 11374217) and the Scientific Research Fund of Sichuan University of Science and Engineering, China (Grant No. 2014PY07).

Tunable localized surface plasmon resonances in one-dimensional h-BN/graphene/h-BN quantum-well structure

Kaibiao Zhang(张开彪)1,2, Hong Zhang(张红)1,3,4, Xinlu Cheng(程新路)1   

  1. 1. Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China;
    2. School of Science, Sichuan University of Science and Engineering, Zigong 643000, China;
    3. College of Physical Science and Technology, Sichuan University, Chengdu 610065, China;
    4. Key Laboratory of High Energy Density Physics and Technology of Ministry of Education, Sichuan University, Chengdu 610064, China
  • Received:2015-08-18 Revised:2015-10-07 Online:2016-03-05 Published:2016-03-05
  • Contact: Hong Zhang E-mail:hongzhang@scu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11474207 and 11374217) and the Scientific Research Fund of Sichuan University of Science and Engineering, China (Grant No. 2014PY07).

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摘要： The graphene/hexagonal boron-nitride (h-BN) hybrid structure has emerged to extend the performance of graphene-based devices. Here, we investigate the tunable plasmon in one-dimensional h-BN/graphene/h-BN quantum-well structures. The analysis of optical response and field enhancement demonstrates that these systems exhibit a distinct quantum confinement effect for the collective oscillations. The intensity and frequency of the plasmon can be controlled by the barrier width and electrical doping. Moreover, the electron doping and the hole doping lead to very different results due to the asymmetric energy band. This graphene/h-BN hybrid structure may pave the way for future optoelectronic devices.

关键词: plasmon, graphene, time-dependent density functional theory

Abstract: The graphene/hexagonal boron-nitride (h-BN) hybrid structure has emerged to extend the performance of graphene-based devices. Here, we investigate the tunable plasmon in one-dimensional h-BN/graphene/h-BN quantum-well structures. The analysis of optical response and field enhancement demonstrates that these systems exhibit a distinct quantum confinement effect for the collective oscillations. The intensity and frequency of the plasmon can be controlled by the barrier width and electrical doping. Moreover, the electron doping and the hole doping lead to very different results due to the asymmetric energy band. This graphene/h-BN hybrid structure may pave the way for future optoelectronic devices.

Key words: plasmon, graphene, time-dependent density functional theory

中图分类号:  (Exchange, correlation, dielectric and magnetic response functions, plasmons)

  • 71.45.Gm
72.80.Vp (Electronic transport in graphene) 73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))