HIGHLY SENSITIVE CARBON-NANOMATERIAL-BASED GAS SENSOR FOR USE IN HIGH-HUMIDITY ENVIRONMENT
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Sep 1, 2017
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Sep 1, 2016
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A highly sensitive carbon-nanomaterial-based gas sensor for use in high-humidity environments and a method of improving the sensitivity thereof, the gas sensor being configured such that a functional group for binding to a water molecule is formed on the surface of a first detector composed of a carbon nanomaterial, whereby a hydronium ion (H3O+) is produced and thus an additional ion conduction path is formed, thereby obtaining an additional reaction path in high-humidity environments, ultimately improving the sensitivity and detection threshold of the sensor. The gas sensor includes a substrate, a first detector disposed on the substrate, electrodes electrically connected to the first detector, and a second detector disposed on the first detector, wherein the second detector has a hydrophilic functional group.
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