IR adsorboluminescence under ultrahigh vacuum induced by adsorption of carbon monoxide onto nickel films: A method for the detection of stepwise adsorption

IR luminescence has been induced either by chemical reactions between gases 1 monoxide onto nickel films at room temperature was observed. The adsorption process was monitored by simultaneously measuring the IR emission in the spectral range 2–5 μm, the change in electrical resistance of the film an...

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Bibliographic Details
Published in:Thin solid films 1982-01, Vol.90 (2), p.209-214
Main Authors: Heidberg, J., Hussla, I., Stammberger, K.-H.
Format: Article
Language:English
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Summary:IR luminescence has been induced either by chemical reactions between gases 1 monoxide onto nickel films at room temperature was observed. The adsorption process was monitored by simultaneously measuring the IR emission in the spectral range 2–5 μm, the change in electrical resistance of the film and the gas pressure. The IR luminescence originates from the covered metal surface, and emission from gases can be excluded. Adsorption was found to be a stepwise process and the step causing the change in resistance could be clearly isolated on the time scale from the step associated with IR emission. The ultrahigh vacuum IR glass cell furnished with a silicon window is described.
ISSN:0040-6090
1879-2731
DOI:10.1016/0040-6090(82)90652-6