Figure 5From: Increases in solar conversion efficiencies of the ZrO2 nanofiber-doped TiO2 photoelectrode for dye-sensitized solar cellsNyquist plots of the DSSCs using TiO 2 film and ZrO 2 nanofiber-doped TiO 2 film. Black circle, 0 wt.%; red diamond, 3 wt.%; cross mark, 5 wt.%; green triangle, 7 wt.%.Back to article page