| 摘要 |
The invention is a photovoltaic device configured as a sandwiched structure comprising a bulk region between a pair of collecting electrodes. The bulk region comprises an electric-field inducing component and a photoactive component. The photoactive component is in electric contact with the collecting electrodes to provide a continuous conduction path for photo-generated charge carriers between the electrodes. The electric-field inducing component is adapted to provide a permanent electric field having high electric strength in the entire inter-electrode region, thereby inducing an electric field in the photoactive component. The electric-field inducing component does not participate in transport of the photo-generated charge carriers. The field inducing component can be comprised of a material that retains sustained polarization or a material that comprises and sustains a spatial distribution of electrical charges, or it can be comprised of both types of materials.
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