Fig. 6: Performance demonstration in perovskite/CIGSe tandem cells. | Nature Communications

Fig. 6: Performance demonstration in perovskite/CIGSe tandem cells.

From: Highly efficient narrow bandgap Cu(In,Ga)Se2 solar cells with enhanced open circuit voltage for tandem application

Fig. 6

a Schematic of the 4-T perovskite/CIGSe tandem cells. b, c J-V curves and EQE spectra of the standalone CIGSe cell, semitransparent perovskite top cell and filtered CIGSe cell. The total EQE is obtained by adding the EQE curves of the perovskite top cell and the filtered CIGSe cell. d, e Summary of four-terminal perovskite/CIGSe tandem efficiency and filtered CIGSe efficiency in recent years surveyed from data listed in Supplementary Table 2.

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