Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System
The layered van der Waals (vdW) heterostructure, assembled from monolayer graphene, hexagonal boron nitride (h-BN) and other atomic crystals in various combinations, is emerging as a new paradigm with which to attain desired electronic and optical properties. In this paper, we study theoretically th...
Main Authors: | , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
MDPI AG
2017-02-01
|
Series: | Crystals |
Subjects: | |
Online Access: | http://www.mdpi.com/2073-4352/7/2/49 |
id |
doaj-405012ca43064c6a8a3e94fb359e6411 |
---|---|
record_format |
Article |
spelling |
doaj-405012ca43064c6a8a3e94fb359e64112020-11-24T23:24:12ZengMDPI AGCrystals2073-43522017-02-01724910.3390/cryst7020049cryst7020049Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling SystemSheng Qu0Hongxia Liu1Lu Dong2Lei Wu3Congcong Ma4Shulong Wang5Key Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaKey Laboratory for Wide Band Gap Semiconductor Materials and Devices of Education, School of Microelectronics, Xidian University, Xi’an 710071, ChinaThe layered van der Waals (vdW) heterostructure, assembled from monolayer graphene, hexagonal boron nitride (h-BN) and other atomic crystals in various combinations, is emerging as a new paradigm with which to attain desired electronic and optical properties. In this paper, we study theoretically the mid-infrared optical properties of the vdW heterostructure based on the graphene–h-BN system. The light–matter interaction of this heterostructure system is described by the hyperbolic phonon–plasmon polaritons which originate from the coupling modes of surface plasmon polaritons (SPPs) in graphene with hyperbolic phonon polaritons (HPPs) in h-BN. By numerical simulation, we find that the coupling modes are governed by the Fermi level of monolayer graphene, the thickness of the h-BN slab and the mode excitation sequence of SPPs and HPPs. Moreover, the response of the coupling modes of the graphene–h-BN heterostructure on a noble metal layer is also proposed in this paper.http://www.mdpi.com/2073-4352/7/2/49Van der Waals heterostructuretwo-dimensional materialsgrapheneh-BNhyperbolic phonon–plasmon polaritons |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Sheng Qu Hongxia Liu Lu Dong Lei Wu Congcong Ma Shulong Wang |
spellingShingle |
Sheng Qu Hongxia Liu Lu Dong Lei Wu Congcong Ma Shulong Wang Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System Crystals Van der Waals heterostructure two-dimensional materials graphene h-BN hyperbolic phonon–plasmon polaritons |
author_facet |
Sheng Qu Hongxia Liu Lu Dong Lei Wu Congcong Ma Shulong Wang |
author_sort |
Sheng Qu |
title |
Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System |
title_short |
Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System |
title_full |
Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System |
title_fullStr |
Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System |
title_full_unstemmed |
Graphene-Hexagonal Boron Nitride Heterostructure as a Tunable Phonon–Plasmon Coupling System |
title_sort |
graphene-hexagonal boron nitride heterostructure as a tunable phonon–plasmon coupling system |
publisher |
MDPI AG |
series |
Crystals |
issn |
2073-4352 |
publishDate |
2017-02-01 |
description |
The layered van der Waals (vdW) heterostructure, assembled from monolayer graphene, hexagonal boron nitride (h-BN) and other atomic crystals in various combinations, is emerging as a new paradigm with which to attain desired electronic and optical properties. In this paper, we study theoretically the mid-infrared optical properties of the vdW heterostructure based on the graphene–h-BN system. The light–matter interaction of this heterostructure system is described by the hyperbolic phonon–plasmon polaritons which originate from the coupling modes of surface plasmon polaritons (SPPs) in graphene with hyperbolic phonon polaritons (HPPs) in h-BN. By numerical simulation, we find that the coupling modes are governed by the Fermi level of monolayer graphene, the thickness of the h-BN slab and the mode excitation sequence of SPPs and HPPs. Moreover, the response of the coupling modes of the graphene–h-BN heterostructure on a noble metal layer is also proposed in this paper. |
topic |
Van der Waals heterostructure two-dimensional materials graphene h-BN hyperbolic phonon–plasmon polaritons |
url |
http://www.mdpi.com/2073-4352/7/2/49 |
work_keys_str_mv |
AT shengqu graphenehexagonalboronnitrideheterostructureasatunablephononplasmoncouplingsystem AT hongxialiu graphenehexagonalboronnitrideheterostructureasatunablephononplasmoncouplingsystem AT ludong graphenehexagonalboronnitrideheterostructureasatunablephononplasmoncouplingsystem AT leiwu graphenehexagonalboronnitrideheterostructureasatunablephononplasmoncouplingsystem AT congcongma graphenehexagonalboronnitrideheterostructureasatunablephononplasmoncouplingsystem AT shulongwang graphenehexagonalboronnitrideheterostructureasatunablephononplasmoncouplingsystem |
_version_ |
1725561364862205952 |