With the advent of efficient high-bandgap metal-halide perovskite photovoltaics, an opportunity exists to make perovskite/silicon tandem solar cells. We fabricate a monolithic tandem by developing a silicon-based interband tunnel junction that facilitates majority-carrier charge recombination between the perovskite and silicon sub-cells. We demonstrate a 1 cm[superscript 2] 2-terminal monolithic perovskite/silicon multijunction solar cell with a V [subscript OC] as high as 1.65 V. We achieve a stable 13.7% power conversion efficiency with the perovskite as the current-limiting sub-cell, and identify key challenges for this device architecture to reach efficiencies over 25%.
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机译：随着高效的高禁带金属卤化物钙钛矿光伏技术的出现，存在制造钙钛矿/硅串联太阳能电池的机会。我们通过开发基于硅的带间隧道结来制造单片串联，该结有助于钙钛矿与硅子电池之间的多数载流子电荷重组。我们演示了一个V [下标OC]高达1.65 V的1 cm [上标2] 2端子整体钙钛矿/硅多结太阳能电池，以钙钛矿为限流子，我们获得了稳定的13.7％功率转换效率单元，并确定该设备架构要实现25％以上的效率所面临的主要挑战。
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