抄録
Sputtered Pt film, heated the Pt film in H2, and Ti4O7 film on glass substrates were used for counter electrodes of dye sensitized solar cells, and photovoltaic properties of these cells were evaluated. Paste containing Ti4O7 powder, which was prepared by reducing anatase type TiO2 powder at 1200 °C in H2, was used and sintered in H2 to form the Ti4O7 film. It was confirmed that all cells generated electricity. Short circuit current density of the cell using counter electrode of Pt film decreased remarkably, when the Pt film was heated in H2. Comparing the films heated in H2, the cell using Ti4O7 counter electrode showed lower fill factor, but higher short circuit current density than that using Pt counter electrode.
