Tungsten oxide nanostructure thin films for electrochromic devices
AssigneeSmart Window Inc., Limited
InventorsJohn H. Roudebush, Lina Zhu, Daniel Giaquinta, Hugues Duncan, Howard Turner
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a thin film is provided. The method includes providing a plurality of crystalline hexagonal tungsten trioxide particles, size-reducing the crystalline hexagonal tungsten trioxide particles by grinding to produce crystalline hexagonal tungsten trioxide nanostructures, and coating the crystalline hexagonal tungsten trioxide nanostructures onto a substrate to produce a thin film. An electrochromic multi-layer stack is also provided.
Claims19
An electrochromic multi-layer stack comprising:
- a substrate comprising a material with a melting point, a glass transition temperature, or a softening point less than 400° C.;
- an electrically conductive layer on the substrate;
- and
- an electrochromic cathode layer on the electrically conductive layer, wherein the electrochromic cathode layer comprises crystalline tungsten trioxide nanostructures, wherein the crystalline tungsten trioxide nanostructures have a mean size or a median size from 50 nm to 300 nm.
A method of manufacturing an electrochromic multi-layer stack comprising:
- forming an electrically conductive layer on a substrate, wherein the substrate comprises a material with a melting point, a glass transition temperature, or a softening point less than 400° C.;
- and
- coating crystalline tungsten trioxide nanostructures onto the electrically conductive layer to produce a thin film, wherein the crystalline tungsten trioxide nanostructures have a mean size or a median size from 50 nm to 300 nm.
Dependencies are inferred from the claim text.