Detection of gas atoms via vibration of graphenes

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)2411-2415
Journal / PublicationPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume375
Issue number24
Publication statusPublished - 13 Jun 2011
Externally publishedYes

Abstract

The application of single-layered graphene sheets as mass sensors in detection of noble gases via a vibration analysis of graphenes is investigated using molecular dynamics simulations. An index based on frequency shifts of the graphenes attached by the distinct noble gas atoms is defined and examined to measure the sensitivity of the sensors. The dependence of number and location of gas atoms, size of graphene sheets, and type of restrained boundary of the sheets on the sensitivity is particularly studied. The simulation results indicate the resolution of a mass sensor made of a square graphene sheet with a size of 10 nm can achieve an order of 10-6 femtograms and the mass sensitivity can be enhanced with a decrease in sizes of graphenes. © 2011 Elsevier B.V. All rights reserved.

Research Area(s)

  • Frequency shifts, Graphene sheets, Mass sensor, Molecular dynamics, Noble gasses

Citation Format(s)

Detection of gas atoms via vibration of graphenes. / Arash, Behrouz; Wang, Quan; Duan, Wen Hui.

In: Physics Letters, Section A: General, Atomic and Solid State Physics, Vol. 375, No. 24, 13.06.2011, p. 2411-2415.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review