Perovskite solar cells (PSCs) have become a research hotspot both domestically and internationally due to their superior optoelectronic performance as a new type of thin-film solar cell. One of the methods to enhance the performance of PSCs is the optimization of the hole transport layer(HTL). In this study, COMSOL Multiphysics simulation software is employed to model and simulate PSCs, and perform coupled simulations of the optical, electrical, and thermal properties of PSCs with different HTL. The simulations analyze the carrier concentration, Shockley–Read–Hall (SRH) recombination, electric field profile, and temperature distribution in the devices. The simulation results demonstrate that among the different HTL (CuO, Spiro-OMeTAD, and NiO), NiO exhibited more favorable characteristics as a HTL for improving the photovoltaic conversion efficiency of PSCs. The photovoltaic conversion efficiency reached 17.14% with NiO as the hole transport layer, and the SRH recombination rate in PSCs based on NiO HTL of PSCs is lower than CuO and Spiro-OMeTAD, facilitating efficient charge transport. Furthermore, the temperature distribution of PSCs is analyzed based on different HTL, and the results indicate that PSCs with NiO as the hole transport layer exhibited higher thermal stability.

中文翻译：

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利用各种空穴传输层探索钙钛矿太阳能电池中的光电热耦合

钙钛矿太阳能电池（PSC）作为一种新型薄膜太阳能电池，以其优越的光电性能成为国内外的研究热点。提高PSC性能的方法之一是空穴传输层（HTL）的优化。在本研究中，采用 COMSOL Multiphysics 仿真软件对 PSC 进行建模和仿真，并对具有不同 HTL 的 PSC 的光学、电学和热性能进行耦合仿真。仿真分析了器件中的载流子浓度、肖克利-雷德-霍尔 (SRH) 复合、电场分布和温度分布。模拟结果表明，在不同的 HTL（CuO、Spiro-OMeTAD 和 NiO）中，NiO 作为 HTL 在提高 PSC 的光伏转换效率方面表现出更有利的特性。以NiO作为空穴传输层，光伏转换效率达到17.14%，并且基于NiO HTL的PSCs中的SRH复合率低于CuO和Spiro-OMeTAD，有利于高效的电荷传输。此外，基于不同HTL对PSCs的温度分布进行了分析，结果表明以NiO作为空穴传输层的PSCs表现出更高的热稳定性。