Comparison of the dye-sensitized solar cells performances based on transparent conductive ITO and FTO

We investigated dye-sensitized solar cell (DSSC) performances with regard to transparent conducting oxide substrates indium-doped tin oxide (ITO) and fluorine-doped tin oxide (FTO) The DSSCs were in a standard configuration a photoelectrode of TiO2 nanoparticles (9 nm size anatase phase) deposited on transparent and electrically conductive substrates counter electrodes of Pt-coated glass ruthenium 535 dye and AN50 iodolyte electrolyte (Solaronix) The cells manufactured from ITO (FTO) had an open circuit voltage of 705 (763) mV and short-circuit current of 7 87 (34 3) mA/cm(2) A direct correlation was found between transparent conductive film resistivity and cell efficiency Resistivities of 52 Omega/sq for ITO substrates and 8 5 Omega/sq for FTO led to major differences in internal global efficiency from 2 24% for ITO to 9 6% for FTO (C) 2010 Elsevier B V All rights reserved