Effect of Au nanoparticles/deformed TiO2 aggregated photoanode with various amounts of Au nanoparticles for dye sensitized solar cells

Deformed TiO
₂
aggregate/Au nanoparticles (DTA/AuNPs) photoanode applied for dye sensitized solar cells (DSSC) was investigated. For comparison, TiO
₂
(P25), DTA and TiO
₂
(P25) doped Au nanoparticles (P25/AuNPs) photoanodes were discussed. The DSSC with P25/AuNPs photoanode exhibits a high short circuit current density of 5.56 mA/cm
²
, a fill-factor of 0.6328 and a power conversion efficiency of 2.40%, which suggests that the enhancement of power conversion efficiency and fill-factor would be contributed by the LSPR effect of AuNPs and the decrease of internal connecting resistance in the photoelectrode film.