Perovskite solar cells have shown a meteoric rise of power conversion efficiency and a steady pace of improvements in their stability of operation. Such rapid progress has triggered research into approaches that can boost efficiencies beyond the Shockley–Queisser limit stipulated for a single‐junction cell under normal solar illumination conditions. The tandem solar cell architecture is one concept here that has recently been successfully implemented. However, the approach of solar concentration has not been sufficiently explored so far for perovskite photovoltaics, despite its frequent use in the area of inorganic semiconductor solar cells. Here, the prospects of hybrid perovskites are assessed for use in concentrator solar cells. Solar cell performance parameters are theoretically predicted as a function of solar concentration levels, based on representative assumptions of charge‐carrier recombination and extraction rates in the device. It is demonstrated that perovskite solar cells can fundamentally exhibit appreciably higher energy‐conversion efficiencies under solar concentration, where they are able to exceed the Shockley–Queisser limit and exhibit strongly elevated open‐circuit voltages. It is therefore concluded that sufficient material and device stability under increased illumination levels will be the only significant challenge to perovskite concentrator solar cell applications.

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混合钙钛矿：聚光太阳能电池的前景

钙钛矿太阳能电池的功率转换效率迅速提高，运行稳定性稳步提高。如此快速的进展引发了人们对一些方法的研究，这些方法可以提高效率，使其超出正常太阳光照条件下单结电池规定的肖克利-奎瑟极限。串联太阳能电池架构是最近已成功实施的一个概念。然而，尽管钙钛矿光伏在无机半导体太阳能电池领域经常使用，但迄今为止，太阳能聚光的方法尚未得到充分探索。在这里，评估了混合钙钛矿在聚光太阳能电池中的应用前景。理论上，基于器件中载流子复合和提取率的代表性假设，太阳能电池的性能参数被预测为太阳集中水平的函数。事实证明，钙钛矿太阳能电池在太阳聚光下可以从根本上表现出明显更高的能量转换效率，它们能够超过肖克利-奎塞尔极限并表现出大幅升高的开路电压。因此得出的结论是，在增加的照明水平下足够的材料和器件稳定性将是钙钛矿聚光太阳能电池应用的唯一重大挑战。