A study of the effect of different central metals in the photosensitization of thin SnO2 nanocrystalline semiconductor film electrodes by carboxyphenyl porphyrins

M. GERVALDO, F. FUNGO, L. OTERO, M.E. MILANESIO, E. N. DURANTINI, J. J. SILBER, L. E. SERENO.

Tucumán

Workshop; NSF-CONICET, Quilmes Nanoscience Workshop; 2003

Quantum yield of sensitized photocurrent generation in nanocristalline SnO2 thin films with metalloporphyrins showed to be highly dependent on the identity of the central metal. Free base (P); Zn(II) (PZn); Cu(II) (PCu); Pd(II) (PPd), and Ni(II) (PNi) 5-(4-carboxyphenyl)-10,15,20-tris(4-methylphenyl) were synthesized and employed as spectral sensitizers in photoelectrochemica cells.