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Unraveling exciton–phonon coupling in individual FAPbI3 nanocrystals emitting near-infrared single photons

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.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorTREBBIA, Jean-Baptiste
hal.structure.identifierSwiss Federal Laboratories for Materials Science and Technology [Dübendorf] [EMPA]
dc.contributor.authorBODNARCHUK, Maryna
hal.structure.identifierEidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] [ETH Zürich]
hal.structure.identifierSwiss Federal Laboratories for Materials Science and Technology [Dübendorf] [EMPA]
dc.contributor.authorKOVALENKO, Maksym
hal.structure.identifierInstitut des Fonctions Optiques pour les Technologies de l'informatiON [FOTON]
dc.contributor.authorEVEN, Jacky
hal.structure.identifierLaboratoire Photonique, Numérique et Nanosciences [LP2N]
dc.contributor.authorLOUNIS, Brahim
dc.date.accessioned2023-05-12T10:46:46Z
dc.date.available2023-05-12T10:46:46Z
dc.date.issued2018-08-20
dc.identifier.issn2041-1723
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/181729
dc.description.abstractEnFormamidinium lead iodide (FAPbI3) exhibits the narrowest bandgap energy among lead halide perovskites, thus playing a pivotal role for the development of photovoltaics and near-infrared classical or quantum light sources. Here, we unveil the fundamental properties of FAPbI3 by spectroscopic investigations of nanocrystals of this material at the single-particle level. We show that these nanocrystals deliver near-infrared single photons suitable for quantum communication. Moreover, the low temperature photoluminescence spectra of FAPbI3 nanocrystals reveal the optical phonon modes responsible for the emission line broadening with temperature and a vanishing exciton–acoustic phonon interaction in these soft materials. The photoluminescence decays are governed by thermal mixing between fine structure states, with a two-optical phonon Raman scattering process. These results point to a strong Frölich interaction and to a phonon glass character that weakens the interactions of charge carriers with acoustic phonons and thus impacts their relaxation and mobility in these perovskites.
dc.language.isoen
dc.publisherNature Publishing Group
dc.title.enUnraveling exciton–phonon coupling in individual FAPbI3 nanocrystals emitting near-infrared single photons
dc.typeArticle de revue
dc.identifier.doi10.1038/s41467-018-05876-0
dc.subject.halPhysique [physics]
dc.subject.halChimie
bordeaux.journalNature Communications
bordeaux.page3318
bordeaux.volume9
bordeaux.hal.laboratoriesLaboratoire Photonique, Numérique et Nanosciences (LP2N) - UMR 5298*
bordeaux.issue1
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionCNRS
bordeaux.peerReviewedoui
hal.identifierhal-01858261
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-01858261v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Nature%20Communications&rft.date=2018-08-20&rft.volume=9&rft.issue=1&rft.spage=3318&rft.epage=3318&rft.eissn=2041-1723&rft.issn=2041-1723&rft.au=FU,%20Ming&TAMARAT,%20Philippe&TREBBIA,%20Jean-Baptiste&BODNARCHUK,%20Maryna&KOVALENKO,%20Maksym&rft.genre=article


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