Self‐heated Nanowire Sensors: Opportunities, Optimization and Limitations
- Conference date: 15–17 April 2009
- Location: Brescia (Italy)
Semiconducting qusi‐1D chemiresistors are nearly ideal substances for deployment of self‐heating effect in gas sensorics. The latter is due to beneficial morphology of the nanowires, which hampers thermal losses to the environment, substrate and metal leads. Since the self‐heated nanowire sensor device does not require an external heater, this effect can be used to fabricate nanoscopic sensors operable at room temperature with ultra‐small power consumption. The analysis of the heat partitioning in self‐heated nanowire device indicate the existence of its optimal architecture where power consumption of few μW is achievable in air.
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