Domain Wall Conduction in Calcium-Modified Lead Titanate for Polarization Tunable Photovoltaic Devices

摘要： By virtue of the domain wall conduction and polarization tunable charge transport properties of ferroelectrics, Qian et al. theoretically demonstrate evidence of electric conduction in domain walls. They successfully fabricate Pb0.8Ca0.2TiO3-based photovoltaic devices with tunable photovoltaic performance by external poling.