Method for producing electrochromic material and electro-optical

Details Method for producing electrochromic material and electro-optical Method for producing electrochromic material and electro-optical

1991-10-25

1994-02-22

Nguyen, Nam

Chemistry: electrical and wave energy

Processes and products

Coating, forming or etching by sputtering

20419215, 427166, 4271263, C23C 1434

Patent

active

052883817

ABSTRACT:
A method for preparing an oxidatively coloring electrochromic layer of composition M.sub.y CrO.sub.2+x (0.33.ltoreq.y.ltoreq.2.0 and x.ltoreq.2) where M=Li, Na or K and an electrochromic devise employing this layer with improved transmittance modulation, improved thermal and environmental stability, and improved resistance to degradation in organic liquid and polymeric electrolytes. The M.sub.y CrO.sub.2+x provides complementary optical modulation to cathodically coloring materials in thin-film electrochromic glazings and electrochromic devices employing polymeric Li.sup.+ ion conductors.

REFERENCES:
patent: 4832463 (1989-05-01), Goldner et al.
patent: 4832467 (1989-05-01), Miyagi et al.
patent: 4938571 (1990-07-01), Cogan et al.
patent: 5086351 (1992-02-01), Couput et al.
patent: 5111328 (1992-05-01), Demiryont

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