Extended Data Fig. 8: Reference and Memsol device performance variation under reverse bias and cycling.
From: Integrated memristor for mitigating reverse-bias in perovskite solar cells
The current density–voltage (J-V) curves of the (a) reference and (b) Memsol devices, measured before and after the experiment shown in Fig. 3a. (c) J-V curves of the Memsol device used in Fig. 3b, before and after the full cycling test. (d) J-V curves of the Memsol device used in Fig. 3e, before and after the full cycling test. (e) Same as the measurement in Fig. 3b, but for longer cycles (24 cycles with 1 h at −2 mA in the dark, 20 s under light, followed by 24 h at −2 mA and 20 s under light). Illumination cycles 10, 12, and 22 demonstrate a failure mode where the memristor turned on for a few seconds during illumination, leading to a temporary reduction in Voc. The resulting power loss over the shown cycles would remain below 3%, crudely estimated by assuming proportionality to Voc and calculated by time-integrating Voc and normalizing to a reference open-circuit voltage of 1.2 V.
