Abstract
Electrochromism (EC) is known as reversible color change induced by electrochemical reaction. The cell using organic EC molecules is applicable to color electronic paper because the molecules represent various color by molecular design. Organic EC molecules based cell can improve coloration and bleaching properties to immobilize the molecules on the electrode, it is important for EC properties how to immobilize them. In this research, we prepared the EC cell that was consisted phthalate derivatives-modified siloxane film and nickel oxide film. The EC cells showed vivid magenta color from clear transparent state applying the voltage of -2.5V, indicating reduction of phthalate derivatives as EC materials. The EC cell using siloxane film showed quicker bleaching response and higher memory property than the solution based EC cell.
