Li intercalation in transparent Ti-Ce oxide films: Energetics and ion dynamics
1997 (English)In: Journal of Applied Physics, ISSN 0021-8979, E-ISSN 1089-7550, Vol. 81, no 9, 6432-6437 p.Article in journal (Refereed) Published
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 Ce4f states; this contention was supported by preliminary results from x-rayabsorption 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.
Place, publisher, year, edition, pages
1997. Vol. 81, no 9, 6432-6437 p.
Engineering and Technology
IdentifiersURN: urn:nbn:se:uu:diva-30207DOI: 10.1063/1.364424OAI: oai:DiVA.org:uu-30207DiVA: diva2:58103