Abstract

A new inorganic/organic composite film PEDOT:Ce@TiO2 was prepared through drop casting-secondary polymerization method using the mixture solution of PEDOT oligomer and cerium-containing polyoxotitanate cage [Ti8O7(HOEt)(OEt)21Ce]. PEDOT:Ce@TiO2 exhibits a special nanostructure with gully-like rough surface, which shows strong hydrophobicity while good wettability to acetonitrile solution. PEDOT:Ce@TiO2 can be used as cathodically electrochromic film and supercapacitor electrode material. The mass specific capacitance of PEDOT:Ce@TiO2 is 71.2 F/g at a current density of 1 A/g, which is 1.7 times higher than that of the PEDOT film. An all-solid-state electrochromic supercapacitor prototype device was further assembled using PEDOT:Ce@TiO2. With charging completed the electrochromic area of this device shows dark green, and it turns bright yellow with discharging completed.

Full Text
Published version (Free)

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call