Journal
PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
Volume 5, Issue 10-11, Pages 406-408Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssr.201105425
Keywords
reflective interferometric spectrometry; porous anodic aluminium oxide; sensors; nanostructures
Funding
- Australian Research Council [DP 0770930]
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This Letter reports the use of nanoporous anodic aluminium oxide (AAO) for reflective interferometric gas sensing. Gas detection is based on changes of the interference signal from AAO porous layer as a result of the specific adsorption of gas molecules on a metal coated surface. Two different metal coatings - gold (Au) and platinum (Pt) - were used and their application for the detection of hydrogen sulphide (H2S) and hydrogen (H-2) is shown. The practical application of a microchip Au-AAO sensor for measurement of H2S concentration and monitoring of malodour is also presented. (C) 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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