Cation and anion optimization of ammonium halide for interfacial passivation of inverted perovskite solar cells

Chem Commun (Camb). 2023 May 18;59(41):6183-6186. doi: 10.1039/d3cc01195j.

Abstract

Perovskite solar cell (PSC) commercialization faces intrinsic stability and efficiency challenges. N1-phenylethane-1,2-diamine hydrohalides (PNEAX) based on a new design strategy featuring cation and anion optimization have been developed for efficient interfacial passivation. Among them, PNEACl-treated devices achieved a champion efficiency of 21.01% with good stability.