Electrochromic particles
AssigneeNtera Limited
InventorsFrancois Pichot, Udo Bach, Nigel Leyland, Donald Lupo, David Corr, S. Nagaraja Rao
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Abstract
The invention concerns discrete electrochromic particles comprising conducting, semiconducting or insulating nanoparticles having one or more electrochromic compounds adsorbed on the surface thereof. These particles may be deposited on an electrode in a single process step at a relatively low temperature, thereby allowing the use of heat-sensitive materials such as plastics as flexible substrates for the electrode.
Claims31
Discrete electrochromic particles comprising conducting, semiconducting or insulating nanoparticles, said nanoparticles having an average particle size of up to 80 nm and one or more electrochromic compounds adsorbed on the surface thereof.
A process for preparing discreet electrochromic particles comprising conducting, semiconducting or insulating nanoparticles having one or more electrochromic compounds adsorbed on the surface thereof comprising:
- providing conducting. semiconducting or insulating nanoparticles having an average particle size of up to 80 nm,
- mixing the conducting, semiconducting or insulating nanoparticles and one or more electrochromic compounds in a solvent, and optionally isolating the resulting electrochromic particles.
Dependencies are inferred from the claim text.