Publication | Closed Access
Mechanism of the Switchable Photovoltaic Effect in Ferroelectric BiFeO<sub>3</sub>
426
Citations
22
References
2011
Year
Materials ScienceRoom TemperatureMultiferroicsElectrical EngineeringEngineeringFerroelectric ApplicationOxide ElectronicsApplied PhysicsPolarization FlippingFerroelectric MaterialsPyroelectricitySwitchable Photovoltaic EffectFunctional MaterialsFerroelectric Bifeo3 CrystalOptoelectronicsPhotovoltaicsElectrochemistryMagnetoelectric Materials
Directions of rectification and photocurrent in a ferroelectric BiFeO3 crystal can be switched by applying high-voltage pulses at room temperature. The switching is highly repeatable though cycling and also stable with time. This switchable photocurrent and diode effect results from the combination of polarization flipping and electromigration of oxygen vacancies.
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