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Room temperature hydrogen gas detection with optically thin palladium films on silicon oxide using photomodulated thermoreflectance
University of Cyprus, Nicosia.
University of Cyprus, Nicosia.
University of Cyprus, Nicosia.
Linköping University, Department of Physics, Chemistry and Biology. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-2817-3574
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1999 (English)In: AIP Conference Proceedings, ISSN 0094-243X, Vol. 463, 220-222 p.Article in journal (Refereed) Published
Abstract [en]

The sensitivity of various thicknesses of optically thin film Pd layers evaporated into a silicon oxide substrate is investigated in the presence of a hydrogen/air atmosphere at room temperature. The magnitude of the resulting reflectivity change is measured using an excite-probe technique, through laser excited photothermal modulation of a probe beam. Data indicates that concentrations of 0.1% hydrogen in a balanced air mixture and at room temperature may be measured with. an 8nm Pd film. Inhomogeneities in the Pd layers lead to anomalous behavior.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 1999. Vol. 463, 220-222 p.
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-88120DOI: 10.1063/1.58050ISI: 000079746800067OAI: diva2:602857
10th international conference on photoacoustic and photothermal phenomena, 23-27 August 1998, Rome, Italy
Available from: 2013-02-04 Created: 2013-01-30 Last updated: 2014-01-09

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Lloyd Spetz, AnitaLundström, Ingemar
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Department of Physics, Chemistry and BiologyThe Institute of Technology
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