Solid state electrochromic display based on polymer electrode-polymer electrolyte interface

✍ Scribed by M.A.B. Gomes; D. Gonçalves; E.C. Pereira de Souza; B. Valla; M.A. Aegerter; L.O.S. Bulhões

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 334 KB
• Volume: 37
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(92)80131-5

✦ Synopsis

The electropolymerization of ortho-toluidine and ortho-anisidine gave uniform electroactive polymer films which were analysed by cyclic voltammetry, impedance and uu-vis absorption spectra. These films exhibit a reversible electrochemical response during cyclic voltammetry experiments in aqueous, non-aqueous and polymer electrolytes. Their electrochromic efficiency is high in aqueous and non-aqueous electrolytes but decreases in the polymer electrolyte. A solid state cell having the configuration ITO/TiO&eO,/LiN(SO,CF,),-PEO complex/polymer/ITO. has been assembled. The transmittance variation of this system between the oxidized and reduced state is about 20% at 632.8 nm.