Scatterings
BiFeO3 Domains May Improve Solar Cells
Scientists describe how unusually high photo-induced voltages are generated in thin films of bismuth ferrite.
Joel Ager, Esther Alarcon Llado and their colleagues demonstrated a new photovoltaic mechanism.
The photovoltaic mechanism by which a ferroelectric material generates high voltages could help create better solar cells. Lead author Jan Seidel and other researchers at Lawrence Berkeley National Laboratory (U.S.A.) and the University of California at Berkeley described how unusually high photo-induced voltages are generated in thin films of bismuth ferrite (Phys. Rev. Lett. 107, 126845). If this mechanism can be applied to other materials, we may be able to design more efficient photovoltaic materials.
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