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Neutral and charged exciton fine structure in single lead halide perovskite nanocrystals revealed by magneto-optical spectroscopy

hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorFU, Ming
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorTAMARAT, Philippe
hal.structure.identifierDepartment of Physics and Materials Science & Centre for Functional Photonics (CFP)
dc.contributor.authorHUANG, He
hal.structure.identifierInstitut des Fonctions Optiques pour les Technologies de l'informatiON [FOTON]
dc.contributor.authorEVEN, Jacky
hal.structure.identifierDepartment of Physics and Materials Science & Centre for Functional Photonics (CFP)
dc.contributor.authorROGACH, Andrey L.
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorLOUNIS, Brahim
dc.date.accessioned2023-05-12T10:53:42Z
dc.date.available2023-05-12T10:53:42Z
dc.date.issued2017-05-10
dc.identifier.issn1530-6984
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181887
dc.description.abstractEnRevealing the crystal structure of lead halide perovskite nanocrystals is essential for the optimization of stability of these emerging materials in applications such as solar cells, photodetectors and light emitting devices. We use magneto-photoluminescence spectroscopy of individual perovskite CsPbBr3 nanocrystals as a unique tool to determine their crystal structure, which imprints distinct signatures in the excitonic sublevels of charge complexes at low temperatures. At zero magnetic field, the identification of two classes of photoluminescence spectra, displaying either two or three sublevels in their exciton fine structure, shows evidence for the existence of two crystalline structures, namely tetragonal D4h and orthorhombic D2h phases. Magnetic field shifts, splitting and coupling of the sublevels provide a determination of the diamagnetic coefficient and valuable information on the exciton g-factor and its anisotropic character. Moreover, this spectroscopic study reveals the optical properties of charged excitons and allows the extraction of the electron and hole g-factors for perovskite systems.
dc.language.isoen
dc.publisherAmerican Chemical Society
dc.subject.enmagneto-optical spectroscopy
dc.subject.ensingle nanocrystals
dc.subject.entrion
dc.subject.enexciton
dc.subject.enband-edge fine structure
dc.subject.enLead halide perovskite
dc.title.enNeutral and charged exciton fine structure in single lead halide perovskite nanocrystals revealed by magneto-optical spectroscopy
dc.typeArticle de revue
dc.identifier.doi10.1021/acs.nanolett.7b00064
dc.subject.halPhysique [physics]
bordeaux.journalNano Letters
bordeaux.page2895–2901
bordeaux.volume17
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue5
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01483034
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01483034v1
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