Fig. 4: Working principles of solar-adaptable PVCD.
From: Full-frame and high-contrast smart windows from halide-exchanged perovskites

a Charging state and discharging state circuit diagrams of solar-adaptable PVCD. b Real-time current (I−t) tendencies in external circuit of PVCD during charging process under different sunlight intensities. c The capacitance (Q) of EC components after the charging process is completed for PVCD charged by different sunlight intensities. d Real-time voltage (V−t) tendencies in external circuit during discharging process for PVCD charged by different sunlight intensities.