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. 2018 Dec 3;9:5126. doi: 10.1038/s41467-018-07431-3

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© The Author(s) 2018

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Fig. 5 — Energy yields at 1000 suns. a Three junctions. The standard direct spectral irradiance is overlaid to highlight the alignment of the optimal band gaps with the transmission bands in the spectrum. b Four junctions. c Five junctions. d Six junctions