ELECTROCHROMIC DEVICES

摘要

Conventional electrochromic devices frequently suffer from poor reliability and poor performance. Improvements are made using entirely solid and inorganic materials. Electrochromic devices are fabricated by forming an ion conducting electronically insulating interfacial region that serves as an IC layer. In some methods, the interfacial region is formed after formation of an electrochromic and a counter electrode layer. The interfacial region contains an ion conducting electronically insulating material along with components of the electrochromic and/or the counter electrode layer. Materials and microstructure of the electrochromic devices provide improvements in performance and reliability over conventional devices.

主权项

1. An electrochromic device comprising:
(a) an electrochromic layer comprising an electrochromic material; (b) a counter electrode layer comprising a counter electrode material; and (c) an interfacial region between the electrochromic layer and the counter electrode layer,wherein the interfacial region comprises a mixture of: (i) a substantially electronically insulating ion conducting material, and (ii) the electrochromic material, the counter electrode material and/or an additional material, where the additional material includes distinct electrochromic or counter electrode material, wherein the electrochromic material can undergo a first electrochromic transition, wherein the counter electrode material can undergo a second electrochromic transition, and wherein the electrochromic device has only one electrochromic layer and only one counter electrode layer.