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dc.contributor.authorAhmed, Ghada H.
dc.contributor.authorYin, Jun
dc.contributor.authorBose, Riya
dc.contributor.authorSinatra, Lutfan
dc.contributor.authorAlarousu, Erkki
dc.contributor.authorYengel, Emre
dc.contributor.authorAlYami, Noktan Mohammed
dc.contributor.authorSaidaminov, Makhsud I.
dc.contributor.authorZhang, Yuhai
dc.contributor.authorHedhili, Mohamed N.
dc.contributor.authorBakr, Osman
dc.contributor.authorBredas, Jean-Luc
dc.contributor.authorMohammed, Omar F.
dc.date.accessioned2017-06-21T06:48:05Z
dc.date.available2017-06-21T06:48:05Z
dc.date.issued2017-05-09
dc.identifier.citationAhmed GH, Yin J, Bose R, Sinatra L, Alarousu E, et al. (2017) Pyridine-Induced Dimensionality Change in Hybrid Perovskite Nanocrystals. Chemistry of Materials 29: 4393–4400. Available: http://dx.doi.org/10.1021/acs.chemmater.7b00872.
dc.identifier.issn0897-4756
dc.identifier.issn1520-5002
dc.identifier.doi10.1021/acs.chemmater.7b00872
dc.identifier.urihttp://hdl.handle.net/10754/625112
dc.description.abstractEngineering the surface energy through careful manipulation of the surface chemistry is a convenient approach to control quantum confinement and structure dimensionality during nanocrystal growth. Here, we demonstrate that the introduction of pyridine during the synthesis of methylammonium lead bromide (MAPbBr) perovskite nanocrystals can transform three-dimensional (3D) cubes into two-dimensional (2D) nanostructures. Density functional theory (DFT) calculations show that pyridine preferentially binds to Pb atoms terminating the surface, driving the selective 2D growth of the nanostructures. These 2D nanostructures exhibit strong quantum confinement effects, high photoluminescence quantum yields in the visible spectral range, and efficient charge transfer to molecular acceptors. These qualities indicate the suitability of the synthesized 2D nanostructures for a wide range of optoelectronic applications.
dc.description.sponsorshipThis work was supported by King Abdullah University of Science and Technology (KAUST). We acknowledge Manas R. Parida and Smritakshi P. Sarmah for their help with the photoluminescence lifetime measurements.
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b00872
dc.titlePyridine-induced Dimensionality Change in Hybrid Perovskite Nanocrystals
dc.typeArticle
dc.contributor.departmentChemical Science Program
dc.contributor.departmentFunctional Nanomaterials Lab (FuNL)
dc.contributor.departmentImaging and Characterization Core Lab
dc.contributor.departmentKAUST Catalysis Center (KCC)
dc.contributor.departmentKAUST Solar Center (KSC)
dc.contributor.departmentLaboratory for Computational and Theoretical Chemistry of Advanced Materials
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentSurface Science
dc.contributor.departmentUltrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
dc.identifier.journalChemistry of Materials
kaust.personAhmed, Ghada H.
kaust.personYin, Jun
kaust.personBose, Riya
kaust.personSinatra, Lutfan
kaust.personAlarousu, Erkki
kaust.personYengel, Emre
kaust.personAlYami, Noktan
kaust.personSaidaminov, Makhsud I.
kaust.personZhang, Yuhai
kaust.personHedhili, Mohamed N.
kaust.personBakr, Osman M.
kaust.personBredas, Jean-Luc
kaust.personMohammed, Omar F.
dc.date.published-online2017-05-09
dc.date.published-print2017-05-23


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