Abstract

ZnO nanorods grown on the F-doped tin oxide glass by a chemical bath deposition were sensitized by the electrophoretic technique or the conventional soaking method, and the resulting electrodes were applied to photoanodes of dye-sensitized solar cells (DSSCs). The DSSC with an electrophoretically-sensitized ZnO layer showed an increase in both the short-circuit current (J_sc) and the open-circuit voltage (V_oc), resulting in a 220% enhancement of photovoltaic performance, when compared to that of the reference cell with a conventionally-sensitized ZnO layer. By applying the electrophoresis to dye adsorption, dye-loading amount was considerably increased, and thereby enhancing the light harvesting efficiency and reducing the interfacial charge recombination between photoinjected electrons and I₃⁻. This led to the enhancement in J_sc and V_oc, compared to those of the reference cell.

摘要

通过化学浴沉积法在 F 掺杂氧化锡玻璃上生长的 ZnO 纳米棒通过电泳技术或常规浸泡方法敏化，并将所得电极应用于染料敏化太阳能电池 (DSSC) 的光阳极。具有电泳敏化 ZnO 层的 DSSC 的短路电流 ( J _sc ) 和开路电压 ( V _oc)，与具有常规敏化 ZnO 层的参考电池相比，光伏性能提高了 220%。通过将电泳应用于染料吸附，显着增加了染料负载量，从而提高了光捕获效率并减少了光注入电子与I ₃ ^-之间的界面电荷复合。与参考单元相比，这导致J _sc和V _{oc的增强。}