Switchable window based on electrochromic polymers

Details Switchable window based on electrochromic polymers Switchable window based on electrochromic polymers

2007-08-14

2007-08-14

Schwartz, Jordan (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S273000, C359S267000

Reexamination Certificate

active

11070392

ABSTRACT:
Syntheses of a new blue EC monomer (ProDOT-MePro), and a new red EC monomer (ProDOP-Et2) are described. Two additional new types of EC monomers based on 3,4-alkylenedioxythiophene include fluorinated EC monomers and an EC monomer including silicon. EC polymer devices having more than one different color EC polymer to enable additional colors to be provided using subtractive color mixing are also described, as well as EC polymer devices incorporating a logo, image, or text, are generally obscured when the device is colored, but become visible when the device is not colored. Also described are EC polymer devices that include a cathodic EC polymer layer, a gel electrolyte, a counter electrode, and a reference electrode. Working prototypes of such devices exhibit significant increases in the speed of transition of the EC device from a colored state to a transparent state.

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