Effect of Nanocrystalline TiO₂ Film Manufacture Method on the Behavior of NPC Solar Cells

Nanocrystalline TiO₂ films were made on ITO glass with sol-gel method and powder-coating method. By X-ray diffraction and TEM, it was shown that the TiO₂ films were mainly anatase structure with a grain size about 30 nm. The surface of TiO₂ films with powder was observed by SEM. The behavior of NPC solar cells composed of the TiO₂ films was analyzed and a method to prepare nanocrystalline TiO₂ films was proposed.