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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
Platinum/graphene nanosheet/SiC contacts and their application for hydrogen gas sensing
Journal of Physical Chemistry C, Volume 114, No. 32, Year 2010
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Description
Pt/graphene nanosheet/SiC based devices are fabricated and characterized and their performances toward hydrogen gas are investigated. The graphene nanosheets are synthesized via the reduction of spray-coated graphite oxide deposited onto SiC substrates. Raman and X-ray photoelectron spectroscopies indicate incomplete reduction of the graphite oxide, resulting in partially oxidized graphene nanosheet layers of less than 10 nm thickness. The effects of interfaces on the nonlinear behavior of the Pt/graphene and graphene/SiC junctions are investigated. Current-voltage measurements of the sensors toward 1% hydrogen in synthetic air gas mixture at various temperatures ranging up to 100. ° C are performed. From the dynamic response, a voltage shift of ∼100 mV is recorded for 1% hydrogen at a constant current bias of 1 mA at 100. °C. © 2010 American Chemical Society.
Authors & Co-Authors
Shafiei, Mahnaz
Australia, Melbourne
Rmit University
Australia, Melbourne
University of Melbourne
Du Plessis, Johan
Australia, Melbourne
Rmit University
Dubin, Sergey
United States, Los Angeles
California Nanosystems Institute
Kaner, Richard B.
United States, Los Angeles
California Nanosystems Institute
Statistics
Citations: 156
Authors: 4
Affiliations: 3
Identifiers
Doi:
10.1021/jp104459s
ISSN:
19327455
Research Areas
Environmental