Electrochemical polymerization of EDOT modified Phthalocyanines and their applications as electrochromic materials with green coloration, and strong absorption in the Near-IR.
- Solis, Claudia Alejandra
- Baigorria, Estefanía
- Milanesio, María Elisa
- Morales, Gustavo Marcelo
- Durantini, Edgardo Néstor
- Otero, Luis Alberto
- Gervaldo, Miguel Andres
DOIAbstract
Electropolymerization by cyclic voltammetry of both Cu and Zn EDOT modified phthalocyanines is described. Polymeric films were successfully formed on Pt, ITO, and Pt containing a previously deposited layer of PEDOT. Based on electrochemical and spectroelectrochemical studies, a possible polymerization mechanism and a polymer structure are proposed. The films showed a green coloration in the reduced state and a grey coloration and also a very broad band that extends to the NIR zone in the fully oxidized state. Optical contrast ratios of 24% at 650 nm, and of 60% at 1050 nm were achieved, with very fast switching times. A window-type device was also constructed, demonstrating the possible applications of these electrochromic materials in smar...
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