biostudies-literatureJiang HNatural Science Foundation of Hubei ProvinceWuhan University of TechnologyNational Natural Science Foundation of China35157-35161https://www.ebi.ac.uk/biostudies/studies/S-EPMC9087713biostudies-literatureUnknown8(61)The hysteretic phenomenon commonly exists in the <i>J</i>-<i>V</i> curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). By adding moderate amounts of methylammonium chloride (MACl) into MAPbI₃ perovskite precursor, we found the <i>J</i>-<i>V</i> hysteresis of carbon-based PSCs could be significantly alleviated and the crystallinity of MAPbI₃ perovskite could also be influenced. With the increasing amount of MACl, MAPbI₃ perovskite showed better and better crystallinity until the MACl came to 0.45 M. The champion device with 0.45 M of additional MACl exhibited a preferable PCE of 14.27% for reverse-scan (RS) and 14.50% for forward-scan (FS), signiRSC advancesAlleviate the <i>J</i>-<i>V</i> hysteresis of carbon-based perovskite solar cells <i>via</i> introducing additional methylammonium chloride into MAPbI₃ precursor.PMC90877132016CFB4642016IVA089517022432016III0302016IVA09351402115516722022016IVA0852017III022Liu XChai NHuang FPeng YJiang HKu ZZhong JCheng YBZhang QfalseAlleviate the <i>J</i>-<i>V</i> hysteresis of carbon-based perovskite solar cells <i>via</i> introducing additional methylammonium chloride into MAPbI₃ precursor.The hysteretic phenomenon commonly exists in the <i>J</i>-<i>V</i> curves of perovskite solar cells with different structures, especially for carbon-based mesoscopic perovskite solar cells without hole-conductor (carbon-based PSCs). By adding moderate amounts of methylammonium chloride (MACl) into MAPbI₃ perovskite precursor, we found the <i>J</i>-<i>V</i> hysteresis of carbon-based PSCs could be significantly alleviated and the crystallinity of MAPbI₃ perovskite could also be influenced. With the increasing amount of MACl, MAPbI₃ perovskite showed better and better crystallinity until the MACl came to 0.45 M. The champion device with 0.45 M of additional MACl exhibited a preferable PCE of 14.27% for reverse-scan (RS) and 14.50% for forward-scan (FS), signi2018-01-01T00:00:00Z2018 Oct2025-04-05T15:51:21.735Z2024-12-04T01:21:40.053ZS-EPMC90877133554707310.1039/c8ra04347g