Journal
SENSORS AND ACTUATORS B-CHEMICAL
Volume 157, Issue 2, Pages 500-503Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.05.007
Keywords
Epitaxial graphene; CVD graphene; Hydrogen sensor; Platinum; SiC
Funding
- Office of Naval Research (ONR) [00075094]
- NSF [ECCS 0901711]
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The characteristics of hydrogen detection using epitaxial graphene covered with platinum are reported. The multi-layered graphene was grown by chemical vapor deposition (CVD) on a Si-polar 4H-SiC substrate. Surface morphology was characterized by scanning electron and atomic force microscopy. Current-voltage measurements and real-time monitoring of the current flow through the graphene/platinum device were used to confirm the response to hydrogen gas. The background temperature was varied from room temperature to 175 degrees C in order to measure the activation energy of hydrogen detection. Published by Elsevier B.V.
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