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Prospects for metal halide perovskite-based tandem solar cells


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.

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Fig. 1: Introduction of tandem PVs and metal halide perovskites.
Fig. 2: Strategies towards high-performance perovskite-based front subcells.
Fig. 3: Strategies towards high-performance perovskite-based rear subcells.
Fig. 4: Demonstration of perovskite-based tandem solar cells.


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This material is based upon work supported by the US Department of Energy’s Office of Energy Efficiency and Renewable Energy (EERE) under the Solar Energy Technologies Office Award Number DE- EE0008751. The work at NREL was supported by the US Department of Energy under contract number DE-AC36-08GO28308 with the Alliance for Sustainable Energy, Limited Liability Company (LLC), the Manager and Operator of the National Renewable Energy Laboratory. J.T. and K.Z. acknowledge the support from the De-Risking Halide Perovskite Solar Cells program of the National Center for Photovoltaics, funded by the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Solar Energy Technologies Office. The views expressed in the article do not necessarily represent the views of the DOE or the US Government. The publisher, by accepting the article for publication, acknowledges that the US Government retains a nonexclusive, paid-up, irrevocable, worldwide licence to publish or reproduce the published form of this work or allow others to do so, for US Government purposes.

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R.W, T.H., J.X. and J.T. researched most of the data and made the draft. K.Z. and Y.Y. revised the manuscript before submission and supervised the project.

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Correspondence to Kai Zhu or Yang Yang.

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Peer review information Nature Photonics thanks Zhaoning Song and Hairen Tan for their contribution to the peer review of this work.

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Wang, R., Huang, T., Xue, J. et al. Prospects for metal halide perovskite-based tandem solar cells. Nat. Photonics 15, 411–425 (2021).

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