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Optoelectronics

Colour-selective photodiodes

Perovskite semiconductors have altered the landscape of solar cell research. Now researchers show that these materials may also offer a flexible platform for colour imaging and wavelength-selective sensing.

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Figure 1: Schematic diagrams of the basic mechanisms of colour selectivity for (a) thin-film and (b) thick single-crystal perovskite photodiodes.

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Correspondence to Michael B. Johnston.

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Johnston, M. Colour-selective photodiodes. Nature Photon 9, 634–636 (2015). https://doi.org/10.1038/nphoton.2015.180

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