Photoanode Modified by PbTiO3 or PbTiO3/TiO2 Nanofibers in Dye-Sensitized Solar Cell

PbTiO
₃
was used as a dopant and PbTiO
₃
/titanium dioxide (TiO
₂
) nanofibers (NFs) were used as a scattering layer in the photoanode of dye-sensitized solar cell (DSSC). Their effects on the characteristics of the photoanode of DSSC were studied. The DSSC with the modified photoanode by PbTiO
₃
and PbTiO
₃
/TiO
₂
NFs was characterized by X-ray diffractometer (XRD), electrochemical impedance spectroscopy (EIS),
${J}$
–
${V}$
characterization, and incident photon current efficiency (IPCE) measurement. The results show that PbTiO
₃
and PbTiO
₃
/TiO
₂
NFs can improve the photovoltaic characteristics of DSSC photoanode. The DSSC with modified photoanode by PbTiO
₃
/TiO
₂
NFs shows better photoelectric conversion efficiency (
$\eta $
). Compared with the DSSC without modification (TiO
₂
photoanode), the photovoltaic conversion efficiency (
$\eta $
) of the DSSC with modified photoanode by PbTiO
₃
/TiO
₂
NFs has increased by 19%. Based on this research, it can be considered that PbTiO
₃
/TiO
₂
NFs can be used as one of the candidate materials to improve the photovoltaic performance of DSSCs.