Figure 7

(a) I-V curves of the device measured in dark and under a power of 12.05 mWcm−2 white light illumination at 0 day and after 30 days. (b) The curves of the currents at different time.
(a) I-V curves of the device measured in dark and under a power of 12.05 mWcm−2 white light illumination at 0 day and after 30 days. (b) The curves of the currents at different time.