Dye sensitized solar cells (DSSCs) have been in the research limelight for some years and plenty of research were devoted to the investigation of material properties for device enhancement. The electrical modeling facilitates the simulation of the device characteristics of the DSSCs. In order to develop highly efficient DSSCs, it is crucial to elucidate the electric mechanism within the cell through the electrical modeling. In this work, we propose a simplified explicit method to estimate the four parameters (photo-generated current (I_ph), saturation current (I_s), ideality factor (n) and series resistance (R_s)) used in the equivalent circuit by using the single diode model. By using the proposed explicit method, two series of simulated I-V curves (blocking layer and chenodeoxycholic acid additive) were generated from LTspice software by using the experiment data of current–voltage (I-V) measurements reported in our previous research. The simulated I-V curves derived from the software show good fitting to the corresponding experimental I-V curves, which demonstrate that the simplified explicit method reported here can be used to serve as an effective approach to evaluate the electrical properties of the DSSCs.

染料敏化太阳能电池（DSSC）一直是研究的热点，许多研究致力于增强设备的材料性能。电气建模有助于仿真DSSC的设备特性。为了开发高效的DSSC，至关重要的是要通过电模型阐明电池内部的电机制。在这项工作中，我们提出了一种简化的显式方法来估算四个参数（光生电流（I _ph），饱和电流（I _s），理想因子（n）和串联电阻（R _s）））通过使用单二极管模型在等效电路中使用。通过使用建议的显式方法，利用我们先前研究中报告的电流-电压（IV）测量的实验数据，从LTspice软件生成了两个系列的模拟IV曲线（阻滞层和鹅去氧胆酸添加剂）。从软件导出的仿真IV曲线与相应的实验IV曲线显示出良好的拟合，表明此处报告的简化显式方法可以用作评估DSSC电气性能的有效方法。