A new cosensitization method using the Lewis acid sites of a TiO2 photoelectrode for dye-sensitized solar cells

Co-sensitized dye-sensitized solar cells using black dye and a pyridine-anchor dye (NI5 or YNI-2) showing site-selective adsorption behaviour at the TiO2 surface have been prepared for the first time to reduce the competitive adsorption between the two dyes.