Metal-complex-based electrochromic device
US11629287B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 15, 2019 |
| Grant date | Apr 18, 2023 |
| Priority date | — |
| Expiry date | May 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2001/1557
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object of the present invention is to provide a novel electrochromic device (ECD). Disclosed is an electrochromic device (ECD) comprising two metal-complex-based electrochromic thin films individually acting as a working electrode and a counter electrode; (i) one of the two metal-complex-based electrochromic thin films being a film of a cathodically coloring metallo-supramolecular polymer comprising at least one organic ligand having a plurality of metal coordination positions and a metal ion of at least one transition metal and/or lanthanoid metal with the at least one organic ligand and the metal ion being arranged alternately, and the other of the two metal-complex-based electrochromic thin films being a film of an anodically coloring metal hexacyanoferrate (MHCF) represented by the formula: M(II)3[Fe(III)CN6]2 (where M=Fe, Ni or Zn), and (ii) the electrochromic device having a first conducting substrate; the film of the cathodically coloring metallo-supramolecular polymer; an electrolyte; the film of the anodically coloring metal hexacyanoferrate (MHCF); and a second conducting substrate being arranged in this order.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.