Comprehensive microscopy analysis of Au/Ag nanoclusters on silica nanospheres

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Proceedings titleNanotechnology 2012: Technical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo. Volume 1: Advanced materials, CNTs, particles, films and composites
ConferenceNanotech Conference and Expo 2012, June 18-21, 2012, Santa Clara, CA, USA
Pages8790; # of pages: 4
SubjectBimetallic nanoclusters; ED; HAADF; HRTEM; STEM; Energy dispersive spectroscopy; Films; Nanotechnology; Silica; Silver alloys; Transmission electron microscopy; Nanocomposite films
AbstractGold/silver (Au/Ag) bimetallic nanoclusters (shell) on silica (Au/Ag @ SiO 2) were synthesized by layer-by-layer technique. By adjusting the mole ratio of Au and Ag, the bimetallic alloy on the SiO 2 nanoshpere surface posseses tunable surface plasmon resonance. Several transmission electron microscopy (TEM) techniques have been applied to characterize the structure and morphology of the bimetallic nanoclusters, including scanning transmission electron microscopy (STEM) tomography, high angle angular dark field (HAADF) imaging, energy dispersive X-ray (EDX) spectoscopy, high resolution TEM (HRTEM) and electron diffraction (ED). The results revealed the Au/Ag alloy nanoclusters were interconnected on the surface of SiO 2 nanospheres with the nanoscale roughess varied with the mole ratio of Au and Ag.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC); Security and Disruptive Technologies
Peer reviewedYes
NPARC number21270287
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Record identifierfca3446c-b07e-4ebc-87ee-c1fa3559a34b
Record created2014-01-20
Record modified2016-05-09
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