Enhancement in the optical CO sensitivity of NiO film by the deposition of ultrafine gold particles
- 1 January 1994
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Faraday Transactions
- Vol. 90 (7) , 1011-1013
- https://doi.org/10.1039/ft9949001011
Abstract
In the presence of reducing gases thin NiO films show reversible changes for visible–near-IR light absorption, a phenomenon which can be applied to the optical detection of CO in air. The deposition of highly dispersed Au on NiO films by a deposition–precipitation method significantly enhances the optical sensitivity and the response rate, allowing CO detection under a substantially lowered operating temperature.Keywords
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