期刊
APPLIED PHYSICS LETTERS
卷 104, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4861183
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资金
- Nebraska Public Power District through the Nebraska Center for Energy Sciences Research [12-00-13]
- NSF through Nebraska MRSEC [DMR-0820521]
- EPSCoR [EPS-1004094]
- NSF [ECCS-0925837]
- Russian Ministry of Education and Science [14.B37.21.1076]
- EPSCoR
- Office Of The Director [1004094] Funding Source: National Science Foundation
Arrays of nearly identical graphene devices on Si/SiO2 exhibit a substantial device-to-device variation, even in case of a high-quality chemical vapor deposition (CVD) or mechanically exfoliated graphene. We propose that such device-to-device variation could provide a platform for highly selective multisensor electronic olfactory systems. We fabricated a multielectrode array of CVD graphene devices on a Si/SiO2 substrate and demonstrated that the diversity of these devices is sufficient to reliably discriminate different short-chain alcohols: methanol, ethanol, and isopropanol. The diversity of graphene devices on Si/SiO2 could possibly be used to construct similar multisensor systems trained to recognize other analytes as well. (C) 2014 AIP Publishing LLC.
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