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Optical and electrochemical properties of Li+ intercalated Zr-Ce oxide and Hf-Ce oxide films
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.ORCID iD: 0000-0002-5496-9664
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Materials Science.
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1998 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 83, no 3, 1670-1676 p.Article in journal (Refereed) Published
Abstract [en]

Sputter deposited Zr–Ce oxide and Hf–Ce oxide films were investigated with regard to structure,optical absorption, and electrochemicalproperties.X-raydiffractometry and Rutherford backscattering spectrometry showed that polycrystalline Zr–Ce oxide and Hf–Ce oxide films had cubic crystal structures for 40–100 mol % CeO2 and 50–100 mol % CeO2, respectively. Cyclic voltammetry was performed in an electrolyte of propylene carbonate containing LiClO4. The charge capacity was ∼60mC/cm2μm for a Zr–Ce oxide film with a Ce/Zr atom ratio of ∼13 as well as for a Hf–Ce oxide film with a Ce/Hf atom ratio of ∼2. A decrease of the charge capacity was noted after ∼1000 voltammetric cycles, with the mixed oxide films being far more stable than CeO2. In situ optical transmittance measurements showed that both Zr–Ce and Hf–Ce oxide films remained essentially transparent during Li+ intercalation. Chronopotentiometry measurements were used to elucidate effects of the electronic structure during Li+ intercalation.

Place, publisher, year, edition, pages
1998. Vol. 83, no 3, 1670-1676 p.
Keyword [en]
YTTRIA-STABILIZED ZIRCONIA; POLYMER ELECTROLYTE; ABSORPTION; COATINGS; CEO2-TIO2; STATE
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Engineering and Technology
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URN: urn:nbn:se:uu:diva-28757DOI: 10.1063/1.366883OAI: oai:DiVA.org:uu-28757DiVA: diva2:56653
Available from: 2008-10-17 Created: 2008-10-17 Last updated: 2017-12-07Bibliographically approved

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Kullman, LisenStrömme, MariaGranqvist, Claes-Göran

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