Gold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yield

Handle URI:
http://hdl.handle.net/10754/623141
Title:
Gold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yield
Authors:
Soldan, Giada ( 0000-0002-1716-6803 ) ; Aljuhani, Maha A. ( 0000-0002-3449-7858 ) ; Bootharaju, Megalamane Siddaramappa ( 0000-0002-8276-6987 ) ; AbdulHalim, Lina G. ( 0000-0003-0818-234X ) ; Parida, Manas R.; Emwas, Abdul-Hamid M.; Mohammed, Omar F. ( 0000-0001-8500-1130 ) ; Bakr, Osman M. ( 0000-0002-3428-1002 )
Abstract:
A high quantum yield (QY) of photoluminescence (PL) in nanomaterials is necessary for a wide range of applications. Unfortunately, the weak PL and moderate stability of atomically precise silver nanoclusters (NCs) suppress their utility. Herein, we accomplished a ≥26-fold PL QY enhancement of the Ag29(BDT)12(TPP)4 cluster (BDT: 1,3-benzenedithiol; TPP: triphenylphosphine) by doping with a discrete number of Au atoms, producing Ag29-xAux(BDT)12(TPP)4, x=1-5. The Au-doped clusters exhibit an enhanced stability and an intense red emission around 660nm. Single-crystal XRD, mass spectrometry, optical, and NMR spectroscopy shed light on the PL enhancement mechanism and the probable locations of the Au dopants within the cluster.
KAUST Department:
KAUST Solar Center (KSC); Physical Sciences and Engineering (PSE) Division; Imaging and Characterization Core Lab
Citation:
Soldan G, Aljuhani MA, Bootharaju MS, AbdulHalim LG, Parida MR, et al. (2016) Gold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yield. Angewandte Chemie International Edition 55: 5749–5753. Available: http://dx.doi.org/10.1002/anie.201600267.
Publisher:
Wiley-Blackwell
Journal:
Angewandte Chemie International Edition
Issue Date:
10-Apr-2016
DOI:
10.1002/anie.201600267; 10.1002/ange.201600267
Type:
Article
ISSN:
1433-7851
Sponsors:
Financial support for this work was provided by KAUST. Part of this work was by Saudi Arabia Basic Industries Corporation (SABIC) grants RGC/3/2470-01 and GIF/5/1830-01.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab; Physical Sciences and Engineering (PSE) Division; Solar and Photovoltaic Engineering Research Center (SPERC)

Full metadata record

DC FieldValue Language
dc.contributor.authorSoldan, Giadaen
dc.contributor.authorAljuhani, Maha A.en
dc.contributor.authorBootharaju, Megalamane Siddaramappaen
dc.contributor.authorAbdulHalim, Lina G.en
dc.contributor.authorParida, Manas R.en
dc.contributor.authorEmwas, Abdul-Hamid M.en
dc.contributor.authorMohammed, Omar F.en
dc.contributor.authorBakr, Osman M.en
dc.date.accessioned2017-04-13T11:50:57Z-
dc.date.available2017-04-13T11:50:57Z-
dc.date.issued2016-04-10en
dc.identifier.citationSoldan G, Aljuhani MA, Bootharaju MS, AbdulHalim LG, Parida MR, et al. (2016) Gold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yield. Angewandte Chemie International Edition 55: 5749–5753. Available: http://dx.doi.org/10.1002/anie.201600267.en
dc.identifier.issn1433-7851en
dc.identifier.doi10.1002/anie.201600267en
dc.identifier.doi10.1002/ange.201600267en
dc.identifier.urihttp://hdl.handle.net/10754/623141-
dc.description.abstractA high quantum yield (QY) of photoluminescence (PL) in nanomaterials is necessary for a wide range of applications. Unfortunately, the weak PL and moderate stability of atomically precise silver nanoclusters (NCs) suppress their utility. Herein, we accomplished a ≥26-fold PL QY enhancement of the Ag29(BDT)12(TPP)4 cluster (BDT: 1,3-benzenedithiol; TPP: triphenylphosphine) by doping with a discrete number of Au atoms, producing Ag29-xAux(BDT)12(TPP)4, x=1-5. The Au-doped clusters exhibit an enhanced stability and an intense red emission around 660nm. Single-crystal XRD, mass spectrometry, optical, and NMR spectroscopy shed light on the PL enhancement mechanism and the probable locations of the Au dopants within the cluster.en
dc.description.sponsorshipFinancial support for this work was provided by KAUST. Part of this work was by Saudi Arabia Basic Industries Corporation (SABIC) grants RGC/3/2470-01 and GIF/5/1830-01.en
dc.publisherWiley-Blackwellen
dc.subjectCoordination modesen
dc.subjectNanoalloysen
dc.subjectNanoclustersen
dc.subjectPhotoluminescenceen
dc.subjectSupramolecular chemistryen
dc.titleGold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yielden
dc.typeArticleen
dc.contributor.departmentKAUST Solar Center (KSC)en
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentImaging and Characterization Core Laben
dc.identifier.journalAngewandte Chemie International Editionen
kaust.authorSoldan, Giadaen
kaust.authorAljuhani, Maha A.en
kaust.authorBootharaju, Megalamane Siddaramappaen
kaust.authorAbdulHalim, Lina G.en
kaust.authorParida, Manas R.en
kaust.authorEmwas, Abdul-Hamid M.en
kaust.authorMohammed, Omar F.en
kaust.authorBakr, Osman M.en
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.