Gold Doping of Silver Nanoclusters: A 26-Fold Enhancement in the Luminescence Quantum Yield
Type
ArticleAuthors
Soldan, Giada
Aljuhani, Maha A.

Bootharaju, Megalamane Siddaramappa

AbdulHalim, Lina G.

Parida, Manas R.

Emwas, Abdul-Hamid M.
Mohammed, Omar F.

Bakr, Osman

KAUST Department
Chemical Engineering ProgramChemical Science Program
Functional Nanomaterials Lab (FuNL)
Imaging and Characterization Core Lab
KAUST Catalysis Center (KCC)
KAUST Solar Center (KSC)
Material Science and Engineering Program
NMR
Physical Science and Engineering (PSE) Division
Ultrafast Laser Spectroscopy and Four-dimensional Electron Imaging Research Group
Date
2016-04-06Online Publication Date
2016-04-06Print Publication Date
2016-05-04Permanent link to this record
http://hdl.handle.net/10754/623141
Metadata
Show full item recordAbstract
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.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.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.Publisher
WileyJournal
Angewandte Chemieae974a485f413a2113503eed53cd6c53
10.1002/anie.201600267