NDLI: Ionic liquid-gated graphene FET array with enhanced selectivity for electronic nose

Content Provider	IEEE Xplore Digital Library
Author	Inaba, A. Takei, Y. Matsumoto, K. Shimoyama, I.
Copyright Year	2014
Description	Author affiliation: Univ. of Tokyo, Tokyo, Japan (Inaba, A.; Takei, Y.; Matsumoto, K.; Shimoyama, I.)
Abstract	We report the selectivity enhancement of the graphene gas sensor using ionic liquids (ILs). Because the gas absorbability and selectivity of the IL depends on the types of its anion and cation, the graphene sensors covered with different ILs have different gas responses. We fabricated the IL-gated graphene field-effect transistors (ILGFETs) and assembled three ILGFEiodineTs with three kinds of ILs into an ILGFET array. Their responses to ammonia, hydrogen peroxide, and iodine were measured. The ILGFET with an IL $([EMIM][BF_{4}])$ was more selective for ammonia and iodine and less selective for iodine than that with another IL ([EMIM][TFSI]). The response patterns obtained using the ILGFET array indicated the feasibility of the graphene electronic nose.
Sponsorship	IEEE Robot. Autom. Soc.
Starting Page	326
Ending Page	329
File Size	3003619
Page Count	4
File Format	PDF
ISBN	9781479935093
DOI	10.1109/MEMSYS.2014.6765642
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Graphene Arrays Gas detectors Current measurement Liquids Gases Fabrication
Content Type	Text
Resource Type	Article

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