Electrically conductive TiO2/indium tin oxide coated glass substrates with high visible light transparency prepared by an electrodeposition method

Abstract

To promote optic performance, ~2 nm TiO2 nanoparticles were coated on the surface of indium tin oxide (ITO) coated glass by an electrodeposition method in this work. The coating process utilized the electric field-driven deposition of positively charged TiO2 nanoparticles on the surface of ITO coated glass substrates used as a working electrode. The surface of the ITO layer on glass substrates became smoother due to the filling of TiO2 nanoparticles in the surface voids. As a result, the transparency of TiO2/ITO coated glass substrates in visible and IR range was promoted due to the reduction of light scattering on the surface of ITO layer. The transmittance of the TiO2/ITO coated glass substrates within the wavelength range of 400~1100 nm was enhanced from 75~87% to ~85% as compared with the ITO coated glass substrate. The TiO2/ITO coated glass substrates also showed the enhanced transmittance within the wavelength range of 2500–5000 nm.