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Turn defects into strengths

The power conversion efficiency of solar cells sensitized with colloidal quantum dots is believed to be limited by surface defects. Research now finds that photocarriers trapped at shallow defect states can actually be recovered and ultimately contribute to device efficiency.

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Fig. 1: Working principle of defect-mediated charge injection in quantum dot sensitized solar cells.


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Correspondence to Iván Mora-Seró.

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Mora-Seró, I. Turn defects into strengths. Nat Energy 5, 363–364 (2020).

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