▎ 摘 要
Current research shows dye-sensitized solar cell (DSSC) photovoltaic conversion efficiency (PCE) can be increased when dye absorption on double layers of titanium dioxide (TiO2) are modified using magnetic beads (MBs) and reduced graphene oxide (rGO). The effects of incorporating both MBs and rGO into a TiO2 DSSC photoanode are investigated here in detail using a solar simulator, electrochemical impedance spectroscopy, X-ray diffraction, UV & x2013;visible spectroscopy and Raman spectroscopy. This study compared to an unmodified TiO2 PCE 4.06 & x0025; and a modified photoanode PCE (& x03B7;) 5.45 & x0025;. Nyquist plots showed that incorporation of MBs and rGO decreased electron transfer impedance and increased the charge transfer rate. Increased dye-loading could be detected through UV & x2013;visible absorption enhancement of 26 & x0025; for the addition of rGO. Incorporation of MBs and rGO can produce higher photovoltaic conversion efficiency.