Preparation and Photocurrent Generation of Nanostructured SnO2 Films Chemically Modified with Mono-substituted C60-Malonic Acid

Mono-substituted C60-malonic acid (C60C(COOH)2) was chemically adsorbed on nanostructured SnO2 electrodes prepared by spincoating ITO substrates with a SnO2 colloidal suspension followed by thermal annealing at 673 K for 1 h. The photocurrent of the film in a redox electrolyte (I3-/I-) was observed under visible light irradiation or simulated AM1.5G solar irradiation.