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Electrochromic Devices Incorporating Cr Oxide And Ni Oxide Films:: A Comparison

✍ Scribed by L Kullman; A Azens; G Vaivars; C.G Granqvist

Publisher
Elsevier Science
Year
2000
Tongue
English
Weight
139 KB
Volume
68
Category
Article
ISSN
0038-092X

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✦ Synopsis

Transparent films of Cr oxide and Ni oxide were made by reactive DC magnetron sputtering in Ar 1 O 1 H . They displayed anodic electrochromism with charge capacities similar to that of W oxide. Cr 2 2 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.

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