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RESEARCH PRODUCT

Electrochromic Devices Incorporating Cr Oxide And Ni Oxide Films:

L. KullmanAndris AzensC. G. GranqvistGuntars Vaivars

subject

Materials scienceRenewable Energy Sustainability and the EnvironmentNickel oxideInorganic chemistryOxideElectrolyteSputter depositionElectrochromic deviceschemistry.chemical_compoundchemistryElectrochromismCavity magnetronGeneral Materials ScienceThin film

description

Abstract Transparent films of Cr oxide and Ni oxide were made by reactive DC magnetron sputtering in Ar+O2+H2. They displayed anodic electrochromism with charge capacities similar to that of W oxide. Cr oxide was stable in acidic environments, while Ni oxide was stable in basic environments. Electrochromic devices were made with pristine Cr oxide or Ni oxide films operating in conjunction with W oxide and a proton conducting electrolyte. Of the two oxides, Cr oxide film allowed device operation at a lower voltage span, while the device with Ni oxide film yielded a higher transmittance in the bleached state, a larger absorptance modulation, and a more neutral color.

https://doi.org/10.1016/s0038-092x(00)00026-8