Fig. 8: Photovoltaic performance of ultrathin PZT films.
From: Thinning ferroelectric films for high-efficiency photovoltaics based on the Schottky barrier effect
a Schematics illustrating the effects of reducing the film thickness toward the depletion width on the PV process, where the recombination in the bulk region can be reduced. Here, only the bulk trap-assisted recombination is schematically drawn, but other types of recombination may also exist. b Illuminated J–V characteristics of the Pt/PZT (12 nm)/SRO structure at different light intensities. c Time-resolved photocurrent responses of the Pt/PZT (12 nm)/SRO structure under cyclic ON/OFF illuminations with different light intensities
