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

Giada Soldan; Maha A. Aljuhani; Megalamane Siddaramappa Bootharaju; Lina G. AbdulHalim; Manas R. Parida; Abdul-Hamid M. Emwas; Omar F. Mohammed; Osman Bakr

doi:10.1002/anie.201600267

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

Giada Soldan, Maha A. Aljuhani, Megalamane Siddaramappa Bootharaju, Lina G. AbdulHalim, Manas R. Parida, Abdul-Hamid M. Emwas, Omar F. Mohammed, Osman Bakr

Research output: Contribution to journal › Article › peer-review

285 Scopus citations

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.

Original language	English (US)
Pages (from-to)	5749-5753
Number of pages	5
Journal	Angewandte Chemie International Edition
Volume	55
Issue number	19
DOIs	https://doi.org/10.1002/anie.201600267 https://doi.org/10.1002/ange.201600267
State	Published - Apr 6 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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.

Access to Document

Cite this

@article{def4fbd1d20e48b28c385e80081ca8fa,

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

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.",

author = "Giada Soldan and Aljuhani, {Maha A.} and Bootharaju, {Megalamane Siddaramappa} and AbdulHalim, {Lina G.} and Parida, {Manas R.} and Emwas, {Abdul-Hamid M.} and Mohammed, {Omar F.} and Osman Bakr",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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.",

year = "2016",

month = apr,

day = "6",

doi = "10.1002/anie.201600267",

language = "English (US)",

volume = "55",

pages = "5749--5753",

journal = "Angewandte Chemie International Edition",

issn = "1433-7851",

publisher = "John Wiley and Sons Ltd",

number = "19",

}

TY - JOUR

T1 - Gold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yield

AU - Soldan, Giada

AU - Aljuhani, Maha A.

AU - Bootharaju, Megalamane Siddaramappa

AU - AbdulHalim, Lina G.

AU - Parida, Manas R.

AU - Emwas, Abdul-Hamid M.

AU - Mohammed, Omar F.

AU - Bakr, Osman

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: 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.

PY - 2016/4/6

Y1 - 2016/4/6

N2 - 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.

AB - 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.

UR - http://hdl.handle.net/10754/623141

UR - http://doi.wiley.com/10.1002/anie.201600267

UR - http://www.scopus.com/inward/record.url?scp=84979723161&partnerID=8YFLogxK

U2 - 10.1002/anie.201600267

DO - 10.1002/anie.201600267

M3 - Article

C2 - 27060602

SN - 1433-7851

VL - 55

SP - 5749

EP - 5753

JO - Angewandte Chemie International Edition

JF - Angewandte Chemie International Edition

IS - 19

ER -

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

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

CCDC 1440203: Experimental Crystal Structure Determination : dodecakis(mu-benzene-1,3-dithiolato)-tetrakis(triphenylphosphine)-gold-octacosa-silver

Cite this

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

Abstract

Bibliographical note

Access to Document

Other files and links

Fingerprint

Datasets

CCDC 1440203: Experimental Crystal Structure Determination : dodecakis(mu-benzene-1,3-dithiolato)-tetrakis(triphenylphosphine)-gold-octacosa-silver

Cite this