Correction to: Nature Reviews Materials https://doi.org/10.1038/s41578-022-00423-2, published online 7 March 2022.

In the version of this article initially published, there was an error in Table 1, first row of the “Passivating rear contact, ‘classic’ metal front contact” section, where the FF (%) value now reading “84.3” appeared originally as “82.3.” The table has been updated in the HTML and PDF versions of the article.