Figure 4
From: Single ferroelectric-domain photovoltaic switch based on lateral BiFeO3 cells
(a, b) Photovoltaic Iph-V characteristics under global illumination in (110) BFO single-domain and (100) BFO multidomain cells during the ±90 V sweep repetition. The voltage sweep rate was 300 mV sec−1. (c) Local spectral photoresponses under the short-circuit condition taken from the regions marked A, B, C (multidomain), and D (single domain). (+)/(−) sign indicates the polarity of the applied E-field.
