Sputter deposited nickel-oxide-based electrochromic coatings
- Chalmers Univ. of Technology, Gothenburg (Sweden). Physics Dept.
This Chapter treats the physical properties of electrochromic nickel-oxide-based coatings prepared by sputter technology. It discusses optical and structural properties and gives support to a model for electrochromic coloration following upon hydrogen extraction. Electrochromic nickel-oxide-based coatings, allow the optical transmittance to be changed reversibly and gradually between widely separated extreme, display a rather neutral color in the dark state, have good cycling durability at least in alkaline solutions, use cheap and readily available raw materials, and can be produced with techniques having straight-forward upscaling possibilities. This combination of favorable properties makes the material of present study of considerable interest for practical applications to architectural and automotive smart windows. Nickel-oxide-based coatings color anodically and are analogous with the much more expensive iridium-oxide-based coatings in this respect. Nickel-oxide-based coatings with different degrees of hydration have been prepared by many techniques; they include (electro)chemical deposition, anodization of metallic Ni, pyrolyzation of Ni-containing metallo-organic compounds, non-reactive evaporation of NiO, reactive evaporation of Ni, and reactive sputter technology. Planar magnetron sputtering currently is the preferred technique for large-area deposition of multilayer coatings, and hence sputtered nickel-oxide-based coatings deserve special interest.
- OSTI ID:
- 86086
- Report Number(s):
- CONF-8809123--; ISBN 0-8194-0069-6
- Country of Publication:
- United States
- Language:
- English
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