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dc.contributor.authorTian, Jiyu
dc.contributor.authorZysman-Colman, Eli
dc.contributor.authorMorrison, Finlay D.
dc.date.accessioned2022-05-12T23:48:08Z
dc.date.available2022-05-12T23:48:08Z
dc.date.issued2021-05-25
dc.identifier274184743
dc.identifierb8a31dba-298a-4475-8b10-e9e36e5844ba
dc.identifier85106529457
dc.identifier000656971000018
dc.identifier.citationTian , J , Zysman-Colman , E & Morrison , F D 2021 , ' Compositional variation in hybrid organic-inorganic lead halide perovskites : kinetically- versus thermodynamically-controlled synthesis ' , Chemistry of Materials , vol. 33 , no. 10 , pp. 3650-3659 . https://doi.org/10.1021/acs.chemmater.1c00470en
dc.identifier.issn0897-4756
dc.identifier.otherORCID: /0000-0002-2813-3142/work/93894058
dc.identifier.otherORCID: /0000-0001-7183-6022/work/93894288
dc.identifier.urihttps://hdl.handle.net/10023/25361
dc.descriptionAuthors thank the Chinese Scholarship Council and the University of St Andrews for Ph.D. Studentship support (to JT, CSC No. 201603780020).en
dc.description.abstractThe formation and study of partial solid solutions in Az1-xFAxPbBr3, using reportedly similar sized cations azetidinium (Az+) and formamidinium (FA+), was explored via mechanosynthesis and precipitation synthesis. The composition and lattice parameters of samples from both syntheses were analyzed by 1H NMR and Rietveld refinement of powder X-ray diffraction. A clear mismatch in the composition of the perovskite was found between the precipitated samples and the corresponding solutions. Such a mismatch was not observed for samples obtained via mechanosynthesis. The discrepancy suggests products are kinetically-controlled during precipitation, compared to thermodynamically controlled mechanosynthesis. Furthermore, the cell volume as a function of composition in both hexagonal, 6H (Az-rich) and cubic, 3C (FA-rich) perovskite solid solutions suggests that FA+ is actually smaller than Az+, contradicting the literature. In the 3C (Az-poor) solid solutions, the extent of Az1-xFAxPbBr3 is unexpectedly smaller than in the corresponding methylammonium (MA+) system, Az1-xMAxPbBr3, which suggests that the extent of solid solution formation in these halide perovskites is predominantly dependent on the average A-cation size while the size mismatch plays a lesser role in comparison to oxides.
dc.format.extent1632992
dc.language.isoeng
dc.relation.ispartofChemistry of Materialsen
dc.subjectQD Chemistryen
dc.subjectDASen
dc.subject.lccQDen
dc.titleCompositional variation in hybrid organic-inorganic lead halide perovskites : kinetically- versus thermodynamically-controlled synthesisen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Chemistryen
dc.contributor.institutionUniversity of St Andrews. Organic Semiconductor Centreen
dc.contributor.institutionUniversity of St Andrews. EaSTCHEMen
dc.identifier.doi10.1021/acs.chemmater.1c00470
dc.description.statusPeer revieweden
dc.date.embargoedUntil2022-05-13


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