A 2-terminal perovskite/silicon multijunction solar cell enabled by a silicon tunnel junction
Applied Physics Letters2015Vol. 106(12)
Citations Over TimeTop 1% of 2015 papers
Jonathan P. Mailoa, Colin D. Bailie, Eric Johlin, Eric T. Hoke, Austin J. Akey, William Nguyen, Michael D. McGehee, Tonio Buonassisi
Abstract
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 cm2 2-terminal monolithic perovskite/silicon multijunction solar cell with a VOC 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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