Issue 3, 2017

Highly sensitive airflow sensors with an ultrathin reduced graphene oxide film inspired by gas exfoliation of graphite oxide

Abstract

Inspired by the gas exfoliation of graphite oxide, a novel airflow sensor is demonstrated with an ultrathin (about 2 nm) reduced graphene oxide (RGO) film with tunable interlayer gaps. The airflow on/off reversibly switches the interlayer gaps of the RGO sheets, and thus changes the electrical conductivity of the RGO film. Remarkably, by virtue of the atomic-scale thickness of the sensing component, RGO sensors show high sensitivity, a wide detection range (tens of mm s−1 to several m s−1), and a low detection limit (26 mm s−1). Such performance is better than that of most of the traditional sensors and near to the capacity of some living beings.

Graphical abstract: Highly sensitive airflow sensors with an ultrathin reduced graphene oxide film inspired by gas exfoliation of graphite oxide

Supplementary files

Article information

Article type
Communication
Submitted
19 Dec 2016
Accepted
06 Feb 2017
First published
06 Feb 2017

Mater. Horiz., 2017,4, 383-388

Highly sensitive airflow sensors with an ultrathin reduced graphene oxide film inspired by gas exfoliation of graphite oxide

Z. Xu, K. Wu, S. Zhang, Y. Meng, H. Li and L. Li, Mater. Horiz., 2017, 4, 383 DOI: 10.1039/C6MH00587J

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