Engineering ferroelectric-nanonet-based heterostructures enables superior photovoltaic effect and asymmetric switchability

In situ constructed ferroelectric-nanonet-supported heterostructure thin film for high-performance photovoltaics

“…3(d)], revealing an obvious out-of-plane remnant polarization and a high bulk conductivity under a large bias voltage. By comparison, BWO/BFO has a stronger FE-polarization behavior than that of BWO, 19 therefore, the emerged depolarization field (E dp ) into BWO/BFO can serve as the key internal field for charge separation. In view of this, under the light, a larger net internal electric field (E net ) for BWO/BFO, which is a combination of E bi and E dp , can be responsible for the dramatic increase in V OC .…”