Ultrafast static and diffusion-controlled electron transfer at Ag 29 nanocluster/molecular acceptor interfaces
AuthorsAly, Shawkat Mohammede
AbdulHalim, Lina G.
Besong, Tabot M.D.
Mohammed, Omar F.
KAUST DepartmentKAUST Solar Center (KSC)
Physical Sciences and Engineering (PSE) Division
Materials Science and Engineering Program
Biological and Environmental Sciences and Engineering (BESE) Division
Chemical and Biological Engineering Program
KAUST Catalysis Center (KCC)
Chemical Science Program
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AbstractEfficient absorption of visible light and a long-lived excited state lifetime of silver nanoclusters (Ag29 NCs) are integral properties for these new clusters to serve as light-harvesting materials. Upon optical excitation, electron injection at Ag29 NC/methyl viologen (MV2+) interfaces is very efficient and ultrafast. Interestingly, our femto- and nanosecond time-resolved results demonstrate clearly that both dynamic and static electron transfer mechanisms are involved in photoluminescence quenching of Ag29 NCs. © 2016 The Royal Society of Chemistry.
CitationAly SM, AbdulHalim LG, Besong TMD, Soldan G, Bakr OM, et al. (2016) Ultrafast static and diffusion-controlled electron transfer at Ag 29 nanocluster/molecular acceptor interfaces . Nanoscale 8: 5412–5416. Available: http://dx.doi.org/10.1039/c5nr05328e.
SponsorsThe work reported here was supported by King Abdullah University of Science and Technology (KAUST). S. M. A. is grateful for the postdoctoral fellowship provided by Saudi Basic Industries Corporation (SABIC). OMB, TMDB, LGA, and GS acknowledge the support of SABIC Presidential Career Development Chair (No. GIF/5/1830-01-01), and KAUST Office of Sponsored Research (OSR) Award No URF/1/1741-01. L. G. A gratefully acknowledges Mr Alberto Tosato for his assistance with the thin film fabrication.
PublisherRoyal Society of Chemistry (RSC)
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