{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Ding S"],"funding":["Discovery Early Career Researcher Award","University of Queensland","Discovery Project","Australian Research Council"],"pagination":["e2204476"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9762318"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["9(35)"],"pubmed_abstract":["Quantum dots (QDs) of formamidinium lead triiodide (FAPbI<sub>3</sub> ) perovskite hold great potential, outperforming their inorganic counterparts in terms of phase stability and carrier lifetime, for high-performance solar cells. However, the highly dynamic nature of FAPbI<sub>3</sub> QDs, which mainly originates from the proton exchange between oleic acid and oleylamine (OAm) surface ligands, is a key hurdle that impedes the fabrication of high-efficiency solar cells. To tackle such an issue, here, protonated-OAm in situ to strengthen the ligand binding at the surface of FAPbI<sub>3</sub> QDs, which can effectively suppress the defect formation during QD synthesis and purification processes is selectively introduced. In addition, by forming a halide-rich surface environment, the ligand density in a broader range for FAPbI<sub>3</sub> QDs without compromising their structural integrity, which significantly improves their optoelectronic properties can be modulated. As a result, the power conversion efficiency of FAPbI<sub>3</sub> QD solar cells (QDSCs) is enhanced from 7.4% to 13.8%, a record for FAPbI<sub>3</sub> QDSCs. Furthermore, the suppressed proton exchange and reduced surface defects in FAPbI<sub>3</sub> QDs also enhance the stability of QDSCs, which retain 80% of the initial efficiency upon exposure to ambient air for 3000 hours."],"journal":["Advanced science (Weinheim, Baden-Wurttemberg, Germany)"],"pubmed_title":["In Situ Bonding Regulation of Surface Ligands for Efficient and Stable FAPbI<sub>3</sub> Quantum Dot Solar Cells."],"pmcid":["PMC9762318"],"funding_grant_id":["DP200101900","DP190102507","FL190100139","DE190101351"],"pubmed_authors":["Fu C","Chen P","He D","Whittaker AK","Ding S","Lin T","Hao M","Chen W","Zhang C","Bai Y","Baktash A","Wang L"],"additional_accession":[]},"is_claimable":false,"name":"In Situ Bonding Regulation of Surface Ligands for Efficient and Stable FAPbI<sub>3</sub> Quantum Dot Solar Cells.","description":"Quantum dots (QDs) of formamidinium lead triiodide (FAPbI<sub>3</sub> ) perovskite hold great potential, outperforming their inorganic counterparts in terms of phase stability and carrier lifetime, for high-performance solar cells. However, the highly dynamic nature of FAPbI<sub>3</sub> QDs, which mainly originates from the proton exchange between oleic acid and oleylamine (OAm) surface ligands, is a key hurdle that impedes the fabrication of high-efficiency solar cells. To tackle such an issue, here, protonated-OAm in situ to strengthen the ligand binding at the surface of FAPbI<sub>3</sub> QDs, which can effectively suppress the defect formation during QD synthesis and purification processes is selectively introduced. In addition, by forming a halide-rich surface environment, the ligand density in a broader range for FAPbI<sub>3</sub> QDs without compromising their structural integrity, which significantly improves their optoelectronic properties can be modulated. As a result, the power conversion efficiency of FAPbI<sub>3</sub> QD solar cells (QDSCs) is enhanced from 7.4% to 13.8%, a record for FAPbI<sub>3</sub> QDSCs. Furthermore, the suppressed proton exchange and reduced surface defects in FAPbI<sub>3</sub> QDs also enhance the stability of QDSCs, which retain 80% of the initial efficiency upon exposure to ambient air for 3000 hours.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Dec","modification":"2025-04-26T00:47:37.716Z","creation":"2025-04-26T00:47:37.716Z"},"accession":"S-EPMC9762318","cross_references":{"pubmed":["36316248"],"doi":["10.1002/advs.202204476"]}}