Abstract
Surface defects, acting as traps for charge carriers, are a key factor limiting the performance of colloidal quantum dot (CQD) photovoltaics. Revealing the full electronic band structure of PbS CQD devices, subjected to the latest surface passivation treatments, enables a direct correlation of features in the band structure with device performance characteristics, as described by Osman M. Bakr and co-workers on page 937.
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