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

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.



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

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 20 Dec 2016, accepted on 22 Mar 2017 and first published on 24 Mar 2017


Article type: Paper
DOI: 10.1039/C6NR09768E
Citation: Nanoscale, 2017, Advance Article
  •   Request permissions

    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, Advance Article , DOI: 10.1039/C6NR09768E

Search articles by author