Correction to: Nature Communications https://doi.org/10.1038/s41467-020-17507-8, published online 21 August 2020.

The original version of this Article contained errors in Table 1. The correct version of the 4th row of the 1st column states ‘720 (750)’ instead of the original, incorrect ‘750 (720)’; the 4th row of the 3rd column states ‘80 (82)’ instead of the original, incorrect ‘82 (80)’ and the 4th row of the 4th column states ‘21.1 (22.4)’ instead of the original, incorrect ‘22.4 (21.1)’.

The correct version of the fourth sentence in the caption of Table 1 states “The Voc value in parentheses (720 mV) is the one for a CIGSe layer exhibiting band-gap fluctuations.” instead of the original, incorrect “The Voc value in parentheses is the one for a CIGSe layer free of band-gap fluctuations.”.

The first sentence of the sixth paragraph of the subsection “Cathodoluminescence (CL) behavior of the CIGSe absorber” in Results contained an error and originally incorrectly read “SGB can be written as 1/4NGBσevth”. The correct version reads “SGB can be written as 1/2NGBσevth”.

This has been corrected in both the PDF and HTML versions of the Article.