Preparation and properties of a high temperature, flexible and colorless ITO coated polyimide substrate

By choosing appropriate monomers, we were able to synthesize a high temperature and colorless polyimide film. The ITO films were deposited on the polyimide film by the magnetron-sputtering process to form flexible ITO coated plastic substrates. Due to the high glass transition temperature (Tg) of the polyimide, the ITO film can be annealed at a temperature up to 250degC to improve its electro-optical properties.