DefinePK

Abstract

A series of experiments have been conducted in order to determine the optimal concentration of polyvinyl alcohol (PVA) for deposition of electrochromic nickel hydroxide films onto fluorine-doped tin oxide (FTO), using cathodic template deposition method. Fundamental physicochemical properties of electrolytes for cathodic template deposition method with different concentration of PVA have been studied. It was found that higher concentrations of PVA resulted in higher adhesion of films to FTO substrate and higher performance; however, excessive concentrations resulted in degradation of film performance. It was also found, the electrolyte viscosity is directly dependant on PVA concentration, however, no correlation between PVA concentration and conductivity have been found. A hypothesis was proposed to explain such behavior.