Enhanced Electric Tuning of Raman Scattering in Monolayer Graphene by Gold NanoRods

Weiguang Liu; Bin Hu; Zhiyuan Du; Zi Wang; Xinzhu Zhou; Juan Liu; Yongtian Wang

doi:10.1007/s11468-017-0510-8

Enhanced Electric Tuning of Raman Scattering in Monolayer Graphene by Gold NanoRods

Weiguang Liu, Bin Hu^*, Zhiyuan Du, Zi Wang, Xinzhu Zhou, Juan Liu, Yongtian Wang

^*Corresponding author for this work

School of Optics and Photonics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Graphene shows extraordinary optical and electrical properties that can be combined with some metallic micro-nanostructures. We experimentally investigated the electric tuning of Raman scattering in both a monolayer graphene and a monolayer graphene with gold nanorods (AuNRs). It is found when a gate voltage is applied on graphene from −30 to 30 V, the G and 2D peaks of the graphene structures can both be tuned. More importantly, the tuning can be significantly enhanced by the AuNRs on graphene, including the change of the peak position, width and the intensity. Our findings may provide a new way for studying enhanced tunable Raman scattering of graphene structures.

Original language	English
Pages (from-to)	275-280
Number of pages	6
Journal	Plasmonics
Volume	13
Issue number	1
DOIs	https://doi.org/10.1007/s11468-017-0510-8
Publication status	Published - 1 Feb 2018

Keywords

Electric tuning
Gold NanoRods
Graphene
Surface plasmons

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abstract = "Graphene shows extraordinary optical and electrical properties that can be combined with some metallic micro-nanostructures. We experimentally investigated the electric tuning of Raman scattering in both a monolayer graphene and a monolayer graphene with gold nanorods (AuNRs). It is found when a gate voltage is applied on graphene from −30 to 30 V, the G and 2D peaks of the graphene structures can both be tuned. More importantly, the tuning can be significantly enhanced by the AuNRs on graphene, including the change of the peak position, width and the intensity. Our findings may provide a new way for studying enhanced tunable Raman scattering of graphene structures.",

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AU - Hu, Bin

AU - Du, Zhiyuan

AU - Wang, Zi

AU - Zhou, Xinzhu

AU - Liu, Juan

AU - Wang, Yongtian

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N2 - Graphene shows extraordinary optical and electrical properties that can be combined with some metallic micro-nanostructures. We experimentally investigated the electric tuning of Raman scattering in both a monolayer graphene and a monolayer graphene with gold nanorods (AuNRs). It is found when a gate voltage is applied on graphene from −30 to 30 V, the G and 2D peaks of the graphene structures can both be tuned. More importantly, the tuning can be significantly enhanced by the AuNRs on graphene, including the change of the peak position, width and the intensity. Our findings may provide a new way for studying enhanced tunable Raman scattering of graphene structures.

AB - Graphene shows extraordinary optical and electrical properties that can be combined with some metallic micro-nanostructures. We experimentally investigated the electric tuning of Raman scattering in both a monolayer graphene and a monolayer graphene with gold nanorods (AuNRs). It is found when a gate voltage is applied on graphene from −30 to 30 V, the G and 2D peaks of the graphene structures can both be tuned. More importantly, the tuning can be significantly enhanced by the AuNRs on graphene, including the change of the peak position, width and the intensity. Our findings may provide a new way for studying enhanced tunable Raman scattering of graphene structures.

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KW - Surface plasmons

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Enhanced Electric Tuning of Raman Scattering in Monolayer Graphene by Gold NanoRods

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