Controlling the Layer Thickness of Zinc Oxide Photoanode and the Dye-Soaking Time for an Optimal-Efficiency Dye-Sensitized Solar Cell

Dye-sensitized solar cells (DSSCs) were developed by exploiting the photovoltaic effect to convert energy into electrical energy. The photoanode layer thickness significantly affects semiconductor film’s ability carry electronic charges, adsorb sensitizing dye molecules, and lower recombination of photo-excited electrons injected semiconductor. This study investigated dependence zinc oxide (ZnO) thin-film film soaking time in N719 on photocurrent–voltage characteristics. ZnO was applied glass using doctor blade method. varied changing scotch tape layers. ZnO-based DSSC attained an efficiency 2.77% with three-layered photoanodes soaked for three hours, compared a maximum 0.68% that achieved cycles dip-coating method other research. its optimal adsorption are important parameters determine DSSC. Therefore, this work provides insights further improve performance DSSCs.