Electrochromism of Er-Diphthalocyanine Complex Films in All Solid Display Cells

Abstract
Electrochromism of Er-diphthalocyanine complex (ErH(Pc)2) film was investigated with (Glass/ITO/ErH(Pc)2+LiF/LiF+CaCl2/Ag) solid cells. The fast change of color from green to purple-red was observed when positive voltages of about 2 V were applied to the ITO electrode, while negative voltages of about -2 V resulted in the change of color to blue-black. The former oxidation process was preceded by the migration of chlorine anions of CaCl2 in the dielectric layer. However, the mechanism of the latter reduction process remains vague.

This publication has 4 references indexed in Scilit: