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Sub ppm detection of hydrogen
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Applied Physics .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Applied Physics .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Applied Physics .ORCID iD: 0000-0002-0873-2877
2008 (English)In: IEEE Sensors Journal, ISSN 1530-437X, E-ISSN 1558-1748, Vol. 8, no 03-Apr, 301-307 p.Article in journal (Refereed) Published
Abstract [en]

A light pulse technique and a field-effect device were used to detect small concentration steps of hydrogen in air. The detection limit was lower than 40 ppb, which is at least one order of magnitude lower than previously reported measurements (with field-effect devices) of hydrogen concentration in air. The device structure was a metal-insulator-semiconductor capacitor with a metal double layer with 17.5 nm Pd (upper layer) and 7.5 nm Pt on a SiO2 insulator and a Si substrate.

Place, publisher, year, edition, pages
2008. Vol. 8, no 03-Apr, 301-307 p.
Keyword [en]
detection limit, gas detectors, hydrogen, metal-insulator-semiconductor (MIS) devices
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-45867DOI: 10.1109/JSEN.2008.917471OAI: oai:DiVA.org:liu-45867DiVA: diva2:266763
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Klingvall, RogerLundström, IngemarEriksson, Mats

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