Table 3 Electron lifetime from the IMVS results of DSSC cells prepared using the Normal films and the TiO2 photo-electrode films with different acetylene-black concentrations

From: Formation of artificial pores in nano-TiO2 photo-electrode films using acetylene-black for high-efficiency, dye-sensitized solar cells

TiO2 photo-electrode films

Normal

0.5 wt%

1.5 wt%

2.0 wt%

fmax (Hz) (Frequency)

0.1711

0.1585

0.1468

0.1711

Ï„r (Electron lifetime, s)

0.93

1.00

1.72

0.93

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