Optimization of TiO 2 –KMnO 4 Composites with Natural Dyes for …
401
Fig. 2 SEM images and EDS result of the a KMnO 4 –TiO 2 2 wt%, b KMnO 4 –TiO 2 6 wt%,c
KMnO 4 –TiO 2 10 wt%
4 Conclusion
KMnO 4 –TiO 2 compact layers were successfully deposited on the conductive FTO
glasses with a variable weight ratio. The addition of KMnO 4 in TiO 2 leads to minimizing the bandgap of TiO 2 and this lower bandgap is responsible to increase the
performance of DSSC. Experimental results show that adding material like KMnO 4 in
semiconductor increase more light-harvesting property due to more electron to flow.
It was also observed that the optimized percentage of KMnO 4 doping enhances the
electron conductivity of the composite thin film by shifting the conduction band
401
Fig. 2 SEM images and EDS result of the a KMnO 4 –TiO 2 2 wt%, b KMnO 4 –TiO 2 6 wt%,c
KMnO 4 –TiO 2 10 wt%
4 Conclusion
KMnO 4 –TiO 2 compact layers were successfully deposited on the conductive FTO
glasses with a variable weight ratio. The addition of KMnO 4 in TiO 2 leads to minimizing the bandgap of TiO 2 and this lower bandgap is responsible to increase the
performance of DSSC. Experimental results show that adding material like KMnO 4 in
semiconductor increase more light-harvesting property due to more electron to flow.
It was also observed that the optimized percentage of KMnO 4 doping enhances the
electron conductivity of the composite thin film by shifting the conduction band