Abstract We have simulated a perovskite solar cell by developing a comprehensive mathematical model which incorporates drift-diffusion and heat transfer equations. This model incorporates all the heat transfer mechanisms, including the thermal power generation due to the tail state recombination and thermalization of charge carriers. Our model is validated by calculating the current-voltage characteristics of a PSC of the structure of Glass/PEDOT: PSS/CH3NH3PbI3/PC60BM/Al and finding it in very good agreement with the experimental results. The influence of grain boundary diameter on the operating temperature of the PSC is investigated in detail. It is found that by increasing the diameter of the grain boundaries, the operating temperature of the PSC decreases at higher voltages and the open circuit voltage increases slightly. The thermal power generated by the thermalization is found to play the dominant role in the operating temperature followed by the thermal power generated at the grain boundaries due to the highest tail state recombination in the region. This study is expected to provide a deeper understanding about different factors that influence the operating temperature of perovskite solar cells.

中文翻译：

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钙钛矿太阳能电池的散热：晶界的作用

摘要 我们通过开发包含漂移扩散和传热方程的综合数学模型模拟了钙钛矿太阳能电池。该模型结合了所有传热机制，包括由于尾态复合和电荷载流子热化而产生的热能。我们的模型通过计算 Glass/PEDOT 结构的 PSC 的电流-电压特性得到验证：PSS/CH3NH3PbI3/PC60BM/Al 并发现它与实验结果非常吻合。详细研究了晶界直径对 PSC 工作温度的影响。发现通过增加晶界直径，PSC 的工作温度在较高电压下降低，开路电压略有增加。发现由热化产生的热功率在工作温度中起主导作用，其次是由于该区域尾态复合最高的晶界处产生的热功率。这项研究有望提供对影响钙钛矿太阳能电池工作温度的不同因素的更深入的了解。