Observation of second flexural mode enhancement in graphene resonators

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

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

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 languageUndefined/Unknown
Pages (from-to)1014-1016(2)
JournalElectronics Letters
Publication statusPublished - 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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