Metal halide perovskite solar cells (PSCs) have gained tremendous attention due to their high power conversion efficiencies (PCEs) and potential for low‐cost manufacturing. Their wide and tunable bandgap makes perovskites an ideal candidate for tandem solar cells (TSCs) with well‐established narrow bandgap photovoltaic technologies, such as crystalline silicon and Cu(In,Ga)Se₂, to boost the PCEs beyond the Shockley–Queisser limit at affordable additional cost. Although perovskite‐based TSCs have shown rapid progress over the past few years, they are far from reaching their practical efficiency limit. In addition, technology commercialization needs to overcome several challenges such as processing upscalability and long‐term operational stability of solar modules. In this review, a comprehensive overview of the recent progress of perovskite‐based TSCs is provided and the key challenges in the field are discussed. First, the structural and optoelectronic properties of metal halide perovskite materials and preparation methods of metal halide perovskite layers are introduced. Next, the important constituents of near‐infrared (NIR) transparent PSCs for achieving high efficiency along with high NIR transmittance are highlighted. Then the developments in perovskite‐based TSCs are reviewed, the limiting factors are outlined, and strategies to boost the efficiencies well beyond 30% are provided. Finally, the review is concluded by highlighting the bottlenecks for commercialization and providing an outlook for technology advancement.

中文翻译：

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近红外透明钙钛矿太阳能电池和钙钛矿基串联光伏电池

金属卤化物钙钛矿太阳能电池（PSC）由于具有高功率转换效率（PCE）和低成本制造潜力而备受关注。钙钛矿的宽带隙和可调带隙使钙钛矿成为采用成熟的窄带隙光伏技术（如晶体硅和Cu（In，Ga）Se ₂，以负担得起的额外费用将PCE提升到Shockley-Queisser限制之外。尽管基于钙钛矿的TSC在过去几年中显示出快速的进步，但远未达到其实际效率极限。此外，技术商业化需要克服一些挑战，例如加工可扩展性和太阳能模块的长期运行稳定性。在这篇综述中，对钙钛矿型TSC的最新进展进行了全面的概述，并讨论了该领域的主要挑战。首先介绍了金属卤化物钙钛矿材料的结构和光电性能以及金属卤化物钙钛矿层的制备方法。下一个，着重介绍了近红外（PS）透明PSC的重要组成部分，它们可实现高效率和高NIR透射率。然后回顾了钙钛矿型TSC的发展，概述了限制因素，并提出了将效率提高到30％以上的策略。最后，通过强调商业化的瓶颈和对技术进步的展望来结束本次审查。