Over the past decade, metal halide perovskite photovoltaics have been a major focus of research, with single-junction perovskite solar cells evolving from an initial power conversion efficiency of 3.8% to reach 25.5%. The broad bandgap tunability of perovskites makes them versatile candidates as the subcell in a tandem photovoltaics architecture. Stacking photovoltaic absorbers with cascaded bandgaps in a multi-junction device can potentially overcome the Shockley–Queisser efficiency limit of 33.7% for single-junction solar cells. There is now intense activity in developing tandem solar cells that pair perovskite with either itself or with a variety of mature photovoltaic technologies such as silicon and Cu(In,Ga)(S,Se)₂ (CIGS). In this review, we survey recent advances in the field and discuss its outlook.

在过去的十年中，金属卤化物钙钛矿光伏电池一直是研究的重点，单结钙钛矿太阳能电池的初始功率转换效率从3.8％发展到25.5％。钙钛矿的宽带隙可调性使其成为串联光伏体系结构中的子电池，具有多种用途。在多结器件中堆叠具有级联带隙的光伏吸收器可以潜在地克服单结太阳能电池的Shockley-Queisser效率极限33.7％。现在，正在开发将钙钛矿与其自身或与各种成熟的光伏技术（例如硅和Cu（In，Ga）（S，Se）₂（CIGS））配对的串联太阳能电池，活动十分活跃。在这篇评论中，我们调查了该领域的最新进展并讨论了其前景。