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The reliable detection of carbon dioxide (CO2) emissions is a key step towards the ability to mitigate CO2 levels in the atmosphere. At present, many CO2 sensors exist, but they all require on the order of watts of power, therefore, they are not suitable for long term unattended operation. In this paper, we present a new design for a microfabricated CO2 sensor that operates at room temperature with...
The influence of defects on the behavior of nanotube chemiresistors has not been widely explored. This paper shows defects play an important role in the behavior of carbon nanotube sensors. Several key effects are seen: an increase in sensitivity due to stronger binding at the defects, a substantial increase in resistance, a change in the main sensing mechanism from process that occur on the junctions...
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