Jump to main content
Jump to site search
SCHEDULED MAINTENANCE Close the message box

Maintenance work is planned for Monday 16 August 2021 from 07:00 to 23:59 (BST).

Website performance may be temporarily affected and you may not be able to access some PDFs or images. If this does happen, refreshing your web browser should resolve the issue. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 17, 2017

Coupling graphene nanomechanical motion to a single-electron transistor

Author affiliations

Abstract

Graphene-based electromechanical resonators have attracted great interest recently because of the outstanding mechanical and electrical properties of graphene and their various applications. However, the coupling between mechanical motion and charge transport has not been explored in graphene. Herein, we studied the mechanical properties of a suspended 50 nm wide graphene nanoribbon, which also acts as a single-electron transistor (SET) at low temperatures. Using the SET as a sensitive detector, we found that the resonance frequency could be tuned from 82 MHz to 100 MHz and the quality factor exceeded 30 000. The strong charge-mechanical coupling was demonstrated by observing the SET induced ∼140 kHz resonance frequency shifts and mechanical damping. We also found that the SET can enhance the nonlinearity of the resonator. Our SET-coupled graphene mechanical resonator could approach an ultra-sensitive mass resolution of ∼0.55 × 10−21 g and a force sensitivity of ∼1.9 × 10−19 N (Hz)−1/2, and can be further improved. These properties indicate that our device is a good platform for both fundamental physical studies and potential applications.

Graphical abstract: Coupling graphene nanomechanical motion to a single-electron transistor

Supplementary files

Article information


Submitted
20 Dec 2016
Accepted
22 Mar 2017
First published
24 Mar 2017

Nanoscale, 2017,9, 5608-5614
Article type
Paper

Coupling graphene nanomechanical motion to a single-electron transistor

G. Luo, Z. Zhang, G. Deng, H. Li, G. Cao, M. Xiao, G. Guo and G. Guo, Nanoscale, 2017, 9, 5608 DOI: 10.1039/C6NR09768E

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.


Social activity

Search articles by author

Spotlight

Advertisements