Hybrid multijunction solar cells comprising hydrogenated amorphous silicon and an organic bulk heterojunction are presented, reaching 11.7% power conversion efficiency. The benefits of merging inorganic and organic subcells are pointed out, the optimization of the cells, including optical modeling predictions and tuning of the recombination contact are described, and an outlook of this technique is given.
Keywords: amorphous silicon; hybrid multijunctions; low-bandgap polymers; record efficiencies; thin-film solar cells.
© 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.