Journal
APPLIED PHYSICS LETTERS
Volume 91, Issue 6, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2768861
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Recent advances in nanotechnology have yielded materials and structures that offer great potential for improving the sensitivity, selectivity, stability, and speed of next-generation chemical gas sensors. To fabricate practical devices, the bottom-up approach of producing nanoscale sensing elements must be integrated with the top-down methodology currently dominating microtechnology. In this letter, the authors illustrate this approach by coupling a single-crystal SnO2 nanowire sensing element with a microhotplate gas sensor platform. The sensing results obtained using this prototype sensor demonstrate encouraging performance aspects including reduced operating temperature, reduced power consumption, good stability, and enhanced sensitivity. (c) 2007 American Institute of Physics.
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