A 2-terminal perovskite/silicon multijunction solar cell enabled by a silicon tunnel junction

作者：Mailoa, Jonathan P.^*; Bailie, Colin D.; Johlin, Eric C.; Hoke, Eric T.; Akey, Austin J.; Nguyen, William H.; McGehee, Michael D.; Buonassisi, Tonio

来源：Applied Physics Letters, 2015, 106(12): 121105.

DOI：10.1063/1.4914179

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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(2) 2-terminal monolithic perovskite/silicon multijunction solar cell with a V-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%.

• 出版日期2015-3-23