Monolithic two-terminal (2T) perovskite/silicon tandem solar cells are rapidly progressing toward higher power conversion efficiencies (PCEs), which has led to a prominent role for this technology within the photovoltaics (PV) research community and, increasingly, in industrial PV R&D. Here, we define a practical PCE target of 37.8% for 2T perovskite/silicon tandems based on metrics derived from state-of-the-art silicon and perovskite solar cells and discuss possible pathways toward that goal. It is hoped that this PCE target will serve to guide future research directions, most notably into continued improvements in the radiative efficiency of the mixed-halide perovskite top cell via bulk and surface passivation strategies.

中文翻译：

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钙钛矿/硅叠层太阳能电池的实用效率目标


单片双端 （2T） 钙钛矿/硅叠层太阳能电池正在迅速向更高的功率转换效率 （PCE） 发展，这导致该技术在光伏 （PV） 研究界以及越来越多的工业光伏研发中发挥着突出作用。在这里，我们根据最先进的硅和钙钛矿太阳能电池的指标，为 37.8T 钙钛矿/硅串联定义了 2T 钙钛矿/硅串联体的实际 PCE 目标，并讨论了实现该目标的可能途径。希望该 PCE 目标将有助于指导未来的研究方向，最显着的是通过体和表面钝化策略持续改进混合卤化物钙钛矿顶部电池的辐射效率。