{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Landi N"],"funding":["European Social Fund"],"pagination":["9517-9525"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9575147"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["13(40)"],"pubmed_abstract":["Mixed-cation lead mixed-halide perovskites are the best candidates for perovskite-based photovoltaics, thanks to their higher efficiency and stability compared to the single-cation single-halide parent compounds. TripleMix (Cs<sub>0.05</sub>MA<sub>0.14</sub>FA<sub>0.81</sub>PbI<sub>2.55</sub>Br<sub>0.45</sub> with FA = formamidinium and MA = methylammonium) is one of the most efficient and stable mixed perovskites for single-junction solar cells. The microscopic reasons why triple-cation perovskites perform so well are still under debate. In this work, we investigated the structure and dynamics of TripleMix by exploiting multinuclear solid-state nuclear magnetic resonance (SSNMR), which can provide this information at a level of detail not accessible by other techniques. <sup>133</sup>Cs, <sup>13</sup>C, <sup>1</sup>H, and <sup>207</sup>Pb SSNMR spectra confirmed the inclusion of all ions in the perovskite, without phase segregation. Complementary measurements showed a peculiar longitudinal relaxation behavior for the <sup>1</sup>H and <sup>207</sup>Pb nuclei in TripleMix with respect to single-cation single-halide perovskites, suggesting slower dynamics of both organic cations and halide anions, possibly related to the high photovoltaic performances."],"journal":["The journal of physical chemistry letters"],"pubmed_title":["Solid-State Nuclear Magnetic Resonance of Triple-Cation Mixed-Halide Perovskites."],"pmcid":["PMC9575147"],"funding_grant_id":["AIM1809115-2"],"pubmed_authors":["Landi N","Simbula A","Carignani E","Maurina E","Borsacchi S","Marongiu D","Calucci L","Geppi M","Saba M"],"additional_accession":[]},"is_claimable":false,"name":"Solid-State Nuclear Magnetic Resonance of Triple-Cation Mixed-Halide Perovskites.","description":"Mixed-cation lead mixed-halide perovskites are the best candidates for perovskite-based photovoltaics, thanks to their higher efficiency and stability compared to the single-cation single-halide parent compounds. TripleMix (Cs<sub>0.05</sub>MA<sub>0.14</sub>FA<sub>0.81</sub>PbI<sub>2.55</sub>Br<sub>0.45</sub> with FA = formamidinium and MA = methylammonium) is one of the most efficient and stable mixed perovskites for single-junction solar cells. The microscopic reasons why triple-cation perovskites perform so well are still under debate. In this work, we investigated the structure and dynamics of TripleMix by exploiting multinuclear solid-state nuclear magnetic resonance (SSNMR), which can provide this information at a level of detail not accessible by other techniques. <sup>133</sup>Cs, <sup>13</sup>C, <sup>1</sup>H, and <sup>207</sup>Pb SSNMR spectra confirmed the inclusion of all ions in the perovskite, without phase segregation. Complementary measurements showed a peculiar longitudinal relaxation behavior for the <sup>1</sup>H and <sup>207</sup>Pb nuclei in TripleMix with respect to single-cation single-halide perovskites, suggesting slower dynamics of both organic cations and halide anions, possibly related to the high photovoltaic performances.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Oct","modification":"2025-04-27T03:36:05.527Z","creation":"2025-04-06T18:55:24.912Z"},"accession":"S-EPMC9575147","cross_references":{"pubmed":["36200785"],"doi":["10.1021/acs.jpclett.2c02313"]}}