Observation of second flexural mode enhancement in graphene resonators

Tao Chen; Enrico Mastropaolo; Andrew Bunting; R. Cheung

Observation of second flexural mode enhancement in graphene resonators

Tao Chen, Enrico Mastropaolo, Andrew Bunting, R. Cheung

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

Abstract

The enhancement of the second flexural mode in a monolayer graphene resonator by an inhomogeneous electrostatic actuation force has been observed. The devices have been fabricated by transferring the graphene onto a poly-Si/SiO2/Si substrate whereby the poly-Si has been released to produce graphene resonators. Enhancement of the second harmonic has been demonstrated by varying the actuation voltage, achieving an amplitude enhancement of up to 95% of the fundamental mode. The reported findings open new perspectives for graphene resonant sensors with enhanced sensitivity.

Original language	Undefined/Unknown
Pages (from-to)	1014-1016(2)
Journal	Electronics Letters
Volume	51
Publication status	Published - 1 Jun 2015

Keywords / Materials (for Non-textual outputs)

monolayer graphene resonator
actuation voltage
polysilicon
amplitude enhancement
second harmonic
inhomogeneous electrostatic actuation force
second flexural mode enhancement

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EL_templated_submit_self-archivingAccepted author manuscript, 468 KB

http://digital-library.theiet.org/content/journals/10.1049/el.2015.0361

Graphene Micro-sensors for Adaptive Acoustic Transduction (GMAAT)
Newton, M. (Principal Investigator), Cheung, R. (Co-investigator), Mastropaolo, E. (Co-investigator), Torin, A. (Researcher) & Wood, G. (Researcher)
EPSRC
1/09/15 → 8/11/17
Project: Research

Cite this

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title = "Observation of second flexural mode enhancement in graphene resonators",

abstract = "The enhancement of the second flexural mode in a monolayer graphene resonator by an inhomogeneous electrostatic actuation force has been observed. The devices have been fabricated by transferring the graphene onto a poly-Si/SiO2/Si substrate whereby the poly-Si has been released to produce graphene resonators. Enhancement of the second harmonic has been demonstrated by varying the actuation voltage, achieving an amplitude enhancement of up to 95\% of the fundamental mode. The reported findings open new perspectives for graphene resonant sensors with enhanced sensitivity.",

keywords = "monolayer graphene resonator, actuation voltage, polysilicon, amplitude enhancement, second harmonic, inhomogeneous electrostatic actuation force, second flexural mode enhancement",

author = "Tao Chen and Enrico Mastropaolo and Andrew Bunting and R. Cheung",

note = "Date of Acceptance:13/05/2015",

year = "2015",

month = jun,

day = "1",

language = "Undefined/Unknown",

volume = "51",

pages = "1014--1016(2)",

journal = "Electronics Letters",

issn = "0013-5194",

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TY - JOUR

T1 - Observation of second flexural mode enhancement in graphene resonators

AU - Chen, Tao

AU - Mastropaolo, Enrico

AU - Bunting, Andrew

AU - Cheung, R.

N1 - Date of Acceptance:13/05/2015

PY - 2015/6/1

Y1 - 2015/6/1

N2 - The enhancement of the second flexural mode in a monolayer graphene resonator by an inhomogeneous electrostatic actuation force has been observed. The devices have been fabricated by transferring the graphene onto a poly-Si/SiO2/Si substrate whereby the poly-Si has been released to produce graphene resonators. Enhancement of the second harmonic has been demonstrated by varying the actuation voltage, achieving an amplitude enhancement of up to 95% of the fundamental mode. The reported findings open new perspectives for graphene resonant sensors with enhanced sensitivity.

AB - The enhancement of the second flexural mode in a monolayer graphene resonator by an inhomogeneous electrostatic actuation force has been observed. The devices have been fabricated by transferring the graphene onto a poly-Si/SiO2/Si substrate whereby the poly-Si has been released to produce graphene resonators. Enhancement of the second harmonic has been demonstrated by varying the actuation voltage, achieving an amplitude enhancement of up to 95% of the fundamental mode. The reported findings open new perspectives for graphene resonant sensors with enhanced sensitivity.

KW - monolayer graphene resonator

KW - actuation voltage

KW - polysilicon

KW - amplitude enhancement

KW - second harmonic

KW - inhomogeneous electrostatic actuation force

KW - second flexural mode enhancement

M3 - Article

SN - 0013-5194

VL - 51

SP - 1014-1016(2)

JO - Electronics Letters

JF - Electronics Letters

ER -

Observation of second flexural mode enhancement in graphene resonators

Abstract

Keywords / Materials (for Non-textual outputs)

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Projects

Graphene Micro-sensors for Adaptive Acoustic Transduction (GMAAT)

Cite this