Electrochromic devices and methods

摘要

A heat treated electrochromic device comprising an anodic complementary counter electrode layer comprised of a mixed tungsten-nickel oxide and lithium, which provides a high transmission in the fully intercalated state and which is capable of long term stability, is disclosed. Methods of making an electrochromic device comprising an anodic complementary counter electrode comprised of a mixed tungsten-nickel oxide are also disclosed.

主权项

1. A method for the preparation of an electrochromic device comprising:
a) providing a first conductive layer, b) depositing one of an electrochromic layer or a counter electrode layer on said first conductive layer, thereby providing a first deposited electrode, c) depositing an ion-conductor layer on said first deposited electrode, d) depositing the other of said electrochromic layer or said counter electrode layer on said ion-conductor layer, thereby providing a second deposited electrode, e) depositing lithium onto said second deposited electrode whereby a mixed tungsten-nickel oxide of the counter electrode layer is reduced, f) depositing a second conductive layer on said second deposited electrode, and g) heat treating said electrochromic device, wherein said counter electrode layer comprises a mixed tungsten-nickel oxide, wherein said mixed tungsten-nickel oxide in said electrochromic device is substantially crystalline, and wherein an amount of nickel in said mixed oxide ranges from 30% to 70% by weight of said mixed oxide.