In this work, we have tried to understand the variation of experimentally obtained photovoltaic characteristics (open-circuit voltage (VOC), short-circuit current density (JSC), fill factor (FF), and conversion efficiency (η)) for multiple dye sensitized solar cells (DSSCs) prepared and characterized under identical experimental conditions. Twenty (20) DSSCs are prepared using ZnO photo-anodes, Pt cathodes, I-/I3- electrolyte, N719 sensitizers, and fluorinated tin oxide-based transparent conducting oxide substrates. ZnO is synthesized wet chemically and characterized in terms of its phase, morphology, thermal stability, optical behavior for the preparation of photoanodes. The photovoltaic characteristics are estimated under the exposure of simulated solar light (power of incident light 100 mW cm-2 from air mass 1.5 G). Relative standard deviation values are estimated for each photovoltaic parameter and the trends of deviations are studied for the developed cells. Finally, the charge transfer dynamics of cells having maximum and minimum photoconversion efficiencies are investigated through electrochemical impedance spectroscopy.

中文翻译：

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几种具有相同光电极、电解质和敏化剂的 ZnO 基染料敏化太阳能电池的性能分析


在这项工作中，我们试图了解多种染料的实验获得的光伏特性（开路电压（VOC）、短路电流密度（JSC）、填充因子（FF）和转换效率（η））的变化在相同的实验条件下制备和表征敏化太阳能电池（DSSC）。使用 ZnO 光阳极、Pt 阴极、I-/I3-电解质、N719 敏化剂和氟化氧化锡基透明导电氧化物基材制备二十 (20) 个 DSSC。 ZnO 采用湿法化学合成，并对其物相、形态、热稳定性、光学行为进行了表征，用于制备光电阳极。光伏特性是在模拟太阳光照射下估算的（来自空气质量 1.5 G 的入射光功率为 100 mW cm-2）。估计每个光伏参数的相对标准偏差值，并研究所开发电池的偏差趋势。最后，通过电化学阻抗谱研究了具有最大和最小光转换效率的电池的电荷转移动力学。