Yameen Ahmed

Abstract Environmentally sensitive ammonium halides have emerged as indispensable surface passivators for perovskite solar cells, demonstrating broadly effective performance at the laboratory scale1-4. However, the sensitivity of ammonium halides to humidity typically necessitates operation under an inert atmosphere5.

Correction to: Nature Energy https://doi.org/10.1038/s41560-024-01672-x, published online 15 November 2024. In the version of the article initially published, we mistakenly listed the environmental score for DMSO as 4 instead of the correct score of 5, based on the evaluation criteria outlined by CHEM21. This error, along with the transposition of the “NMP” and “DMPU” labels on the x axis, has been corrected in Fig. 1a, as seen below in Fig. 1. Original and corrected Fig. 1a.

Abstract Commercializing perovskite-based tandems necessitates environmentally friendly solvents for scalable fabrication of efficient wide-bandgap (WBG) (1.65–1.80 eV) perovskites. However, the green solvents developed for formamidinium lead iodide-based ~1.50-eV-bandgap perovskites are unsuitable for WBG perovskites due to the low solubility of caesium and bromide salts, leading to reliance on toxic N,N-dimethylformamide solvent.