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Perovskite solar cells

Switchable photovoltaics

The migration of ions under the effect of an external electric field locally modifies the doping of organometal halide perovskite films. This is used to reversibly switch the photocurrent direction in very simple photovoltaic architectures.

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Figure 1: Perovskite solar cells with vertical or lateral structure, and their field-switchable photovoltaic effects.


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Correspondence to Nam-Gyu Park.

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Park, NG. Switchable photovoltaics. Nature Mater 14, 140–141 (2015).

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