Journal
MATERIALS HORIZONS
Volume 4, Issue 3, Pages 383-388Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6mh00587j
Keywords
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Funding
- National Key Research and Development Program [2016YFB0401104]
- Key Research Program of Frontier Sciences of Chinese Academy of Sciences [QYZDB-SSW-SLH031]
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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.
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