Rasha Awni

Correction to: Nature https://doi.org/10.1038/s41586-022-05541-z Published online 15 November 2022 In the unedited, preview version of this article initially published, the Methods subsection “Single junction wide bandgap perovskite solar cells” was present under the “Solar cell fabrication” section; the paragraph was subsequently missing in the original typeset version. The error has been corrected in the HTML and PDF versions of the article.

Abstract Bandgap gradient is a proven approach for improving the open-circuit voltages (VOCs) in Cu(In,Ga)Se2 and Cu(Zn,Sn)Se2 thin-film solar cells, but has not been realized in Cd(Se,Te) thin-film solar cells, a leading thin-film solar cell technology in the photovoltaic market. Here, we demonstrate the realization of a bandgap gradient in Cd(Se,Te) thin-film solar cells by introducing a Cd(O,S,Se,Te) region with the same crystal structure of the absorber near the front junction.

Author notes These authors contributed equally: Hao Chen, Aidan Maxwell, Chongwen Li, Sam Teale, Bin Chen Authors and Affiliations The Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada Hao Chen, Aidan Maxwell, Chongwen Li, Sam Teale, Bin Chen, Tong Zhu, Luke Grater, Junke Wang, Zaiwei Wang, Lewei Zeng, So Min Park & Edward H.