Thick mesoporous TiO2 nanostructured films obtained by screen-printing for application in dye-senitized solar cells

E. C. MUNIZ; R. PARRA; M. S. GÓES; J.J. DA SILVA; E. JOANNI; J. A. VARELA; P. R. BUENO

Rio de Janeiro, Brasil

Congreso; 11th Internacional Conference on Advanced Materials ICAM 2009; 2009

Anatase TiO2 colloidal dispersions were obtained by hydrothermal treatments (200ºC) of titanium isopropoxide gels modified with acetic acid in the presence of a non-ionic surfactant. Then, it was added absolute ethanol, anhydrous terpineol and ethyl cellulose in the anatase TiO2 dispersion, resulting in 23% weight paste. TiO2 mesoporous films with thickness about 10 μm for application in dye-sensitized solar cells were prepared by screen-printing method. The screen-printing method allowed to prepare reproducible films with desired properties like thickness and porosity.