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Fast A‐site cation cross‐exchange at room temperature: single‐to double‐ and triple‐cation halide perovskite nanocrystals

dc.contributor.authorOtero Martinez, Clara 
dc.contributor.authorImran, Muhammad
dc.contributor.authorSchrenker, Nadine J.
dc.contributor.authorYe, Junzhi
dc.contributor.authorJi, Kangyu
dc.contributor.authorRao, Akshay
dc.contributor.authorStranks, Samuel D.
dc.contributor.authorHoye, Robert L. Z.
dc.contributor.authorBals, Sara
dc.contributor.authorManna, Liberato
dc.contributor.authorPérez Juste, Jorge 
dc.contributor.authorPolavarapu , Lakshminarayana 
dc.date.accessioned2023-01-09T13:36:29Z
dc.date.available2023-01-09T13:36:29Z
dc.date.issued2022-08-22
dc.identifier.citationAngewandte Chemie International Edition, 61(34): e202205617 (2022)spa
dc.identifier.issn14337851
dc.identifier.issn15213773
dc.identifier.urihttp://hdl.handle.net/11093/4332
dc.descriptionFinanciado para publicación en acceso aberto: Universidade de Vigo/CISUG
dc.description.abstractWe report here fast A-site cation cross-exchange between APbX3 perovskite nanocrystals (NCs) made of different A-cations (Cs (cesium), FA (formamidinium), and MA (methylammonium)) at room temperature. Surprisingly, the A-cation cross-exchange proceeds as fast as the halide (X=Cl, Br, or I) exchange with the help of free A-oleate complexes present in the freshly prepared colloidal perovskite NC solutions. This enabled the preparation of double (MACs, MAFA, CsFA)- and triple (MACsFA)-cation perovskite NCs with an optical band gap that is finely tunable by their A-site composition. The optical spectroscopy together with structural analysis using XRD and atomically resolved high-angle annular dark-field scanning transmission electron microscopy (HAADF-STEM) and integrated differential phase contrast (iDPC) STEM indicates the homogeneous distribution of different cations in the mixed perovskite NC lattice. Unlike halide ions, the A-cations do not phase-segregate under light illumination.spa
dc.description.sponsorshipAgencia Estatal de Investigación | Ref. PID2020-117371RA-I00spa
dc.description.sponsorshipXunta de Galicia | Ref. ED431F2021/05spa
dc.language.isoengspa
dc.publisherAngewandte Chemie International Editionspa
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RYC2018-026103-I/ES
dc.relationinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-117371RA-I00/ES/SINTESIS DE NANOCRISTALES QUIRALES DE HALUROS DE PEROVSKITAS CON COMPOSICION Y MORFOLOGIA CONTROLADA Y SU AUTOENSAMBLAJE PARA SUPERFLUORESCENCIA POLARIZADA CIRCULARMENTE
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleFast A‐site cation cross‐exchange at room temperature: single‐to double‐ and triple‐cation halide perovskite nanocrystalsen
dc.typearticlespa
dc.rights.accessRightsopenAccessspa
dc.relation.projectIDinfo:eu-repo/grantAgreement/EU/H2020/815128
dc.relation.projectIDinfo:eu-repo/grantAgreement/EU/H2020/731019
dc.identifier.doi10.1002/anie.202205617
dc.identifier.editorhttps://onlinelibrary.wiley.com/doi/10.1002/anie.202205617spa
dc.publisher.departamentoQuímica Físicaspa
dc.publisher.grupoinvestigacionNanoBioMateriais Funcionaisspa
dc.subject.unesco2307 Química Físicaspa
dc.date.updated2023-01-04T08:20:57Z
dc.computerCitationpub_title=Angewandte Chemie International Edition|volume=61|journal_number=34|start_pag=e202205617|end_pag=spa


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    Except where otherwise noted, this item's license is described as Attribution 4.0 International