Nanowire/Nanoparticle Composite Electrodes for Dye-Sensitized Solar Cells

抄録

Several types of TiO₂-based nanowire/nanoparticle composite electrodes for dye-sensitized solar cells studied by our group are briefly overviewed. In the latter part, a recent result on the structural optimization will be reported. Hydrogen titanate nanotube, which were added (10 wt%) into P-25 TiO₂ matrix, pulverized to nanoparticles with some "vestigial" 1-D nanostructure during sintering process. This quasi nanowire/nanoparticle structure resulted in the improvement of efficiency: from 5.59% (pure P-25) into 7.30% (P-25 with vestigial 1-D nanostructure).