Abstract
19% perovskite solar cells with enhanced electronic properties of MAPbI3film through employing 2.5% PbCl2additive in the precursor.
Highlights
Perovskites based on organic–inorganic lead halides with a formula of APbX3 (A 1⁄4 methylammonium (MA), formamidinium (FA); X 1⁄4 I, Br, and Cl) have attracted signi cant research interest due to their excellent optoelectronic properties and low-cost fabrication process.[1]
It is ascribed to the effectiveness of the Lewis acid–base adduct method which results in high quality MAPbI3 perovskite lms.[16,21]
We have demonstrated the effect of PbCl2 on the morphology, crystallinity and recombination of the MAPbI3 perovskite lm that was prepared via a one-step Lewis acid–base adduct method
Summary
Perovskites based on organic–inorganic lead halides with a formula of APbX3 (A 1⁄4 methylammonium (MA), formamidinium (FA); X 1⁄4 I, Br, and Cl) have attracted signi cant research interest due to their excellent optoelectronic properties and low-cost fabrication process.[1]. We report a simple method to improve the performance of PSCs by incorporating a lead chloride (PbCl2) material into the MAPbI3 perovskite precursor through a Lewis acid–base adduct.
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