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Tandems in the thick of it

Two-terminal all-perovskite tandem structures are promising as low-cost yet highly efficient solar cells, but their development is limited by the poor quality of the low bandgap absorber layer. Now, a processing method has been shown to enable the production of uniform, thick tin–lead perovskite layers, which translate into improved photovoltaic parameters.

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Fig. 1: Tandem solar cell operation.


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Correspondence to Henk J. Bolink.

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Bolink, H.J. Tandems in the thick of it. Nat Energy 3, 1027–1028 (2018).

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