Pyridine-induced Dimensionality Change in Hybrid Perovskite Nanocrystals

Handle URI:
http://hdl.handle.net/10754/625112
Title:
Pyridine-induced Dimensionality Change in Hybrid Perovskite Nanocrystals
Authors:
Ahmed, Ghada H.; Yin, Jun; Bose, Riya; Sinatra, Lutfan ( 0000-0001-7034-7745 ) ; Alarousu, Erkki; Yengel, Emre ( 0000-0001-7208-4803 ) ; AlYami, Noktan; Saidaminov, Makhsud I. ( 0000-0002-3850-666X ) ; Zhang, Yuhai ( 0000-0003-0175-0383 ) ; Hedhili, Mohamed N. ( 0000-0002-3624-036X ) ; Bakr, Osman M. ( 0000-0002-3428-1002 ) ; Brédas, Jean Luc; Mohammed, Omar F. ( 0000-0001-8500-1130 )
Abstract:
Engineering 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.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Imaging and Characterization Core Lab
Citation:
Ahmed 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.
Publisher:
American Chemical Society (ACS)
Journal:
Chemistry of Materials
Issue Date:
2-May-2017
DOI:
10.1021/acs.chemmater.7b00872
Type:
Article
ISSN:
0897-4756; 1520-5002
Sponsors:
This 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.
Additional Links:
http://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b00872
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorAhmed, Ghada H.en
dc.contributor.authorYin, Junen
dc.contributor.authorBose, Riyaen
dc.contributor.authorSinatra, Lutfanen
dc.contributor.authorAlarousu, Erkkien
dc.contributor.authorYengel, Emreen
dc.contributor.authorAlYami, Noktanen
dc.contributor.authorSaidaminov, Makhsud I.en
dc.contributor.authorZhang, Yuhaien
dc.contributor.authorHedhili, Mohamed N.en
dc.contributor.authorBakr, Osman M.en
dc.contributor.authorBrédas, Jean Lucen
dc.contributor.authorMohammed, Omar F.en
dc.date.accessioned2017-06-21T06:48:05Z-
dc.date.available2017-06-21T06:48:05Z-
dc.date.issued2017-05-02en
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.en
dc.identifier.issn0897-4756en
dc.identifier.issn1520-5002en
dc.identifier.doi10.1021/acs.chemmater.7b00872en
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.en
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.en
dc.publisherAmerican Chemical Society (ACS)en
dc.relation.urlhttp://pubs.acs.org/doi/abs/10.1021/acs.chemmater.7b00872en
dc.titlePyridine-induced Dimensionality Change in Hybrid Perovskite Nanocrystalsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentImaging and Characterization Core Laben
dc.identifier.journalChemistry of Materialsen
kaust.authorAhmed, Ghada H.en
kaust.authorYin, Junen
kaust.authorBose, Riyaen
kaust.authorSinatra, Lutfanen
kaust.authorAlarousu, Erkkien
kaust.authorYengel, Emreen
kaust.authorAlYami, Noktanen
kaust.authorSaidaminov, Makhsud I.en
kaust.authorZhang, Yuhaien
kaust.authorHedhili, Mohamed N.en
kaust.authorBakr, Osman M.en
kaust.authorBrédas, Jean Lucen
kaust.authorMohammed, Omar F.en
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