Journal
APPLIED PHYSICS LETTERS
Volume 92, Issue 13, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2905265
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The response of an originally developed catalytic sensor with a Nb2O5 nanowire array at its outer surface to the varying density of O atoms is experimentally and numerically studied. This technique can be used to measure one order of magnitude lower densities of O atoms and achieve a stable linear response in a significantly broader pressure range compared to conventional catalytic probes with a flat surface. The nanostructured outer surface also acts as a thermal barrier against sensor overheating. This approach is generic and can be used for reactive species detection in other reactive gas environments. (C) 2008 American Institute of Physics.
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