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Getting high with quantum dot solar cells

Colloidal perovskite quantum dots offer potential stability advantages for solar cells over bulk perovskites but lag far behind in device efficiency. Now, a modified cation exchange method has been shown to improve the optoelectronic quality of perovskite nanocrystals, improving further the efficiency and stability of quantum dot solar cells.

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Fig. 1: QD synthesis by ligand-assisted cation exchange.


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Correspondence to Joel Jean.

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The author is a founder and chief executive officer of Swift Solar, a US company developing perovskite photovoltaics.

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Jean, J. Getting high with quantum dot solar cells. Nat Energy 5, 10–11 (2020).

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