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US 9,975,989 B2Granted
Multicolored electrochromic polymer compositions and methods of making and using the same
AssigneeFurcifer Inc.
InventorsJianguo Mei, Yan Zhou
Life of this patent
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Abstract
This disclosure relates generally to electrochromic polymers that include a plurality of π-conjugated chromophores in spaced relation with one another, and a plurality of conjugation-break spacers (CBSs), where at least one CBS separates adjacent chromophores. The chromophores may be colored in the neutral state, and multicolored to transmissive in different oxidization states.
Claims11
An electrochromic polymer, comprising:
- a plurality of π-conjugated chromophores in spaced relation with one another, wherein each π-conjugated chromophore is colored in a neutral state, and is colored or transmissive in an oxidized state;
- and
- a plurality of conjugation-break spacers (CBSs), wherein at least one CBS separates adjacent π-conjugated chromophores,
- wherein at least one of the plurality of π-conjugated chromophores comprises at least one optionally substituted 3,4-propylenedioxythiophene moiety, at least one optionally substituted benzene moiety, or at least one optionally substituted benzo[c][1,2,5]thiadiazole moiety, or combinations thereof.
1 more element
Dependencies are inferred from the claim text.