Perovskite/silicon tandem solar cells have reached efficiencies above 25% in just about three years of development, mostly driven by the rapid progress made in the perovskite solar cell research field. This review aims to give an overview of the achievements made in this timeframe toward the goal of developing high‐efficiency perovskite/silicon tandem cells with sufficiently large area and long lifetime to be commercially interesting. The developments that led to the recent progress in tandem cell efficiency, as well as the factors currently still limiting their performance, including parasitic absorption, reflection losses, and the nonideal perovskite absorber layer bandgap, are discussed. Based on this discussion, guidelines for future developments are given. In addition, crucial aspects to enable the commercialization of perovskite/silicon tandem solar cells are reviewed, such as device stability and upscaling. Finally, economic considerations show how the number of steps and/or the costs associated to these steps for realizing the perovskite cell must be kept to a minimum to keep up with progress in the field of silicon photovoltaics.

中文翻译：

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钙钛矿/硅串联太阳能电池：便利的婚姻还是真实的爱情故事？–概述

在大约三年的发展中，钙钛矿/硅串联太阳能电池的效率已达到25％以上，这主要是由于钙钛矿太阳能电池研究领域的快速发展所致。这篇综述旨在概述在此时间框架内所取得的成就，以期开发出具有足够大面积和长寿命的高钙钛矿/硅串联电池，从而引起商业兴趣。讨论了导致串联电池效率的最新进展以及目前仍限制其性能的因素，包括寄生吸收，反射损耗和非理想钙钛矿吸收层带隙。在此讨论的基础上，给出了未来发展的指南。此外，本文综述了钙钛矿/硅串联太阳能电池商业化的关键方面，例如器件的稳定性和超大型化。最后，经济上的考虑表明如何将实现钙钛矿电池的步骤数和/或与这些步骤相关的成本保持在最低水平，以跟上硅光伏领域的发展。