FIGURE 6 PV-EC performance of CO2RR. (A) Schematic of the PV-EC system. PV-EC device are composed of W@AgD/C on 10 cm2 GDL as cathode, 3-6 silicon cells in series as modules with a size of 10 cm x 12 cm, Fe-doped Co foam as anode, and anion exchange membrane. (B) Current density over an applied cell voltage (green) from the I-V curve and (C) FE toward CO of photovoltaics-assisted CO2RR system under AM 1.5 G (orange). Reproduced with the permission.[105]Copyright 2021, Elsevier. (D) Schematic illustration of the PV-EC device. PV-EC CO2RR system is composed of Ga0.5In0.5P/GaAs tandem structure as solar cells, Au25 cluster as cathode part, NiFe inverse opal as anode, and 3 M KOH as electrolyte. (E) I-V curves of the Ga0.5In0.5P/GaAs tandem photovoltaics and Au25-NiFe under AM 1.5G. (F) STC efficiency of solar-driven CO2RR during 12 h. Reproduced with the permission.[106] Copyright 2020, American Chemical Society. (G) Schematic of the PV-EC device. Bi(B) and FeP nanosheets supported on Ni foam were utilized as cathode and anode, respectively, for PV-EC system with GaInP/GaInAs/Ge solar cell. (H) J-V curves under AM 1.5 G and (I) STF efficiency during 4 h of PV-CO2RR system. Reproduced with the permission.[107] Copyright 2021, John Wiley and Sons