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RESEARCH PRODUCT
Li intercalation in transparent Ti–Ce oxide films: Energetics and ion dynamics
Andris AzensJuris PuransClaes-göran GranqvistGunnar A. NiklassonMme MattssonM. Strosubject
Materials scienceInorganic chemistryAnalytical chemistryOxideGeneral Physics and AstronomySputter depositionDielectric spectroscopychemistry.chemical_compoundchemistryElectrochromismSputteringCyclic voltammetryThin filmSpectroscopydescription
Films of Ti dioxide, mixed Ti–Ce oxide, and Ce dioxide were produced by reactive dc magnetron sputtering. Electrochemical lithiation was probed by chronopotentiometry, cyclic voltammetry together with optical transmittance recording, and impedance spectroscopy. Evidence was found for inserted electrons being accommodated in Ce 4f states; this contention was supported by preliminary results from x-ray absorption fine-structure spectroscopy. These electrons do not produce luminous electrochromism. The variation of the chemical diffusion coefficient of Li, with film composition and Li content, was also studied.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1997-05-01 | Journal of Applied Physics |