Modification of conventional photoanode with oxide nanoparticles is a practical tactic to improve the performance of electrochemical devices. In this study. erbium oxide (Er2O3) nanoparticles were mixed with the TiO2 paste and photovoltaic performance of the dye-sensitized solar cell (DSSC) was investigated. The highest power conversion efficiency of 6. https://parisnaturalfoodes.shop/product-category/chamomile-flowers/