Figure 5.

Device performance and stability of flexible PSCs

(A) Current density-Voltage curves of the control and target devices.

(B–D) Normalized average PCE of the control and target devices as a function of bending cycles with R = 5 mm. Normalized average PCE of the control and target devices as a function of time with (C) 1-sun illumination and (D) heating at 35°C (40 ± 5% relative humidity), where RH is an abbreviation for relative humidity.

(E) Performance of 25 cm² wearable perovskite power source.

(F) Biomedical application of the wearable perovskite power source on the deep brain stimulation.