Patent ID: 11960188
Assignee: VIEW, INC.
Field: Optics (Instruments)
Classification: CPC G  C | IPC C  G

Claim 19:
20. An electrochromic device stack, comprising:
an electrochromic layer,
a counter electrode layer comprising:
a first sublayer,
a second sublayer,
a third sublayer, and
a fourth sublayer,

wherein the first sublayer comprises nickel tungsten oxide, and is disposed between the electrochromic layer and the second sublayer,
wherein the second sublayer comprises nickel tungsten niobium oxide with 3 atomic percent niobium, and is disposed between the first sublayer and the third sublayer,
wherein the third sublayer comprises nickel tungsten niobium oxide with 7 atomic percent niobium, and is disposed between the second sublayer and the fourth sublayer, and
wherein the fourth sublayer comprises nickel tungsten niobium oxide with about 10 atomic percent niobium.