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Reversible hydrogen annealing of metal‐oxide‐silicon carbide devices at high temperatures
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.ORCID iD: 0000-0002-2817-3574
Linköping University, Department of Physics, Chemistry and Biology, Applied Physics. Linköping University, The Institute of Technology.
1995 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 67, no 21, 3203-3205 p.Article in journal (Refereed) Published
Abstract [en]

We report on a reversible hydrogen annealing effect observed in platinum-silicon dioxide-silicon carbide structures at temperatures above about 650 degrees C. It appears as a decrease of the inversion capacitance in the presence of hydrogen. This phenomenon is shown to depend on hydrogen atoms, created on the catalytic metal, that pass through the oxide and interact with charge generation sites at the oxide-silicon carbide interface. The consequence of the observation for chemical sensors based on silicon carbide is discussed. The results are phenomenological, since no details of the annealing chemistry could be developed from the present experiments. We find, however, that the annealing process and its reversal have activation energies of about 0.9 eV and 2.9 eV/site,respectively.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 1995. Vol. 67, no 21, 3203-3205 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-88142DOI: 10.1063/1.115163ISI: A1995TF57400051OAI: oai:DiVA.org:liu-88142DiVA: diva2:602848
Available from: 2013-02-04 Created: 2013-01-30 Last updated: 2017-12-06

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Baranzahi, AmirLloyd Spetz, AnitaLundström, Ingemar

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