Modified procedure for the sol-gel processing of indium-tin oxide (ITO) films

Dispersions of crystalline nanoscaled ITO and solutions of amorphous precursors were used for the preparation of transparent conductive films on glass both by large area dip-coating (30 x 30 cm(2)) and pad-printing. The advantages of both types of coating materials regarding single layer thickness and conductivity were combined by a coating-infiltration procedure. The resulting films showed a specific resistivity down to 1.77 10E-03 Omega cm after treatment in reducing atmosphere and an increased resistance to subsequent storage in air.