Electrochromic cathode materials
AssigneeView Operating Corporation
InventorsRobert Tad Rozbicki, Sridhar Karthik Kailasam
Life of this patent
Estimating the term…
Abstract
Various embodiments herein relate to electrochromic devices and electrochromic device precursors, as well as methods and apparatus for fabricating such electrochromic devices and electrochromic device precursors. In certain embodiments, the electrochromic device or precursor may include one or more particular materials such as a particular electrochromic material and/or a particular counter electrode material. In various implementations, the electrochromic material includes tungsten titanium molybdenum oxide. In these or other implementation, the counter electrode material may include nickel tungsten oxide, nickel tungsten tantalum oxide, nickel tungsten niobium oxide, nickel tungsten tin oxide, or another material.
Claims26
An electrochromic device comprising:
- a first electrically conductive layer having a thickness between about 5-10,000 nm;
- an electrochromic layer comprising an electrochromic material comprising tungsten titanium molybdenum oxide having a composition W1-x-yTixMoyOz, where x is between about 0.05-0.25, y is between about 0.01-0.15, and z is between about 2.5-2.9, the electrochromic layer having a thickness between about 50-2,000 nm;
- a counter electrode layer comprising a counter electrode material comprising nickel tungsten oxide, the counter electrode layer having a thickness between about 50-650 nm;
- and
- a second electrically conductive layer having a thickness between about 5-10,000 nm,
- wherein the electrochromic layer and the counter electrode layer are positioned between the first electrically conductive layer and the second electrically conductive layer, and wherein the electrochromic device is all solid state and inorganic, and
- wherein the electrochromic device does not include a homogeneous layer of ion conducting, electronically insulating material between the electrochromic layer and the counter electrode layer.
An electrochromic device precursor, comprising:
- a first electrically conductive layer having a thickness between about 5-10,000 nm;
- an electrochromic layer comprising an electrochromic material comprising tungsten titanium molybdenum oxide having a composition W1-x-yTixMoyOz, where x is between about 0.05-0.25, y is between about 0.01-0.15, and z is between about 3.5-4.5, the electrochromic layer having a thickness between about 50-2,000 nm;
- a counter electrode layer comprising a counter electrode material comprising nickel tungsten oxide, the counter electrode layer having a thickness between about 50-650 nm;
- and
- a second electrically conductive layer having a thickness between about 5-10,000 nm,
- wherein the electrochromic layer and the counter electrode layer are positioned between the first electrically conductive layer and the second electrically conductive layer, and wherein the electrochromic device precursor is all solid state and inorganic wherein the electrochromic device precursor does not include a homogenous layer of ion conducting, electronically insulating material between the electrochromic layer and the counter electrode layer.
Dependencies are inferred from the claim text.