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Department of Mechanical Engineering, University of Wisconsin–Milwaukee, Milwaukee, Wisconsin 53211, USA
E-mail: jhchen@uwm.edu
; Fax: +1 414 229 6958
; Tel: +1 414 229 2615
b
Center for Nanoscale Materials, Argonne National Laboratory, Argonne, Illinois 60439, USA
Chem. Commun., 2011,47, 7761-7763
DOI:
10.1039/C1CC12658J
Received
06 May 2011,
Accepted
12 May 2011
First published online
06 Jun 2011
Reduced graphene oxide (R-GO) under a positive gate potential (n-type conductance) exhibits an instantaneous response and fast recovery for NH3 sensing, far superior to the performance in p-mode at zero/negative gate potential. Our findings have important implications for fast, repeatable, room temperature gas detection using graphene/R-GO.
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