In this work, a multifunctional ionic liquid passivator, 1-aminoethyl-3-methylimidazolium tetrafluoroborate (AMFB), is incorporated to passivate A +, B 2+, and X – defects in the perovskite absorber and enhance device stability further. . r length scale on an insulating subs d thus solve the problem of efficiency losses. This pa performance of perovskite solar cells (PSCs). The solar array of a PV system can be mounted on rooftops, generall ility in Ionic Liquid. . Recently, a collaboration between DAS Solar and Chen Group applied a spraying approach to form an organic passivation film on the lateral side of cutting cells, to compensate for the cutting losses of the two types of high-efficiency cells. This paper tried to obtain the optimized passivating contact properties and deposi-tion techniques by introducing high-k Hafnium oxide (HfOx). .
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