Electrochromic elements using antioxidants to suppress...

Details Electrochromic elements using antioxidants to suppress... Electrochromic elements using antioxidants to suppress...

2011-03-29

2011-03-29

Martinez, Joseph (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

Reexamination Certificate

active

07916379

ABSTRACT:
The invention relates to the use of antioxidants of different kinds and concentrations in electrochromic elements having an ion conducting component to suppress self-discharging. In comparison to electrochromic elements known from prior art, electrochromic elements according to the invention show a significantly smaller increase in transmissivity for a period of time after the electric current necessary to decrease transmissivity is switched off. The use of sterically hindered amines and/or 1,3,5-trisubstituted phenols has proven particularly effective for this purpose.

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