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will speak on
"Synthesis and Characterization of
Au-Ag Core-Shell Spherical Nanoparticles"
Silver and gold nanoparticles have received considerable attention due to their unique optical properties. Their localized surface plasmon resonance (LSPR) band is the basis for many applications in biosensors, photothermal cancer therapy, and surface-enhanced Raman scattering. Combining these two metals in core-shell entities offers further possibilities for tailoring and tuning the LSPR by changing the thickness of the external shell. Both gold and silver have a face-centered cubic (fcc) crystal structure and very similar crystal lattice constants. For these reasons, it is possible to synthesize gold-silver alloys or core-shell structures using various approaches.
This presentation will review the optical properties (LSPR) of Au and Ag nanoparticles and recent work aimed at synthesizing Au-Ag core-shell nanostructures and modeling their optical properties. The results of our research focused on the synthesis and characterization of Au-Ag core-shell spherical nanoparticles will be also presented. The suitability of the prepared particles for applications in optoelectronics will be discussed.
Friday, November 18, 2011
214 B.H. Snell Hall
About Clarkson University
Clarkson University launches leaders into the global economy. One in five alumni already leads as a CEO, VP or equivalent senior executive of a company. Located just outside the Adirondack Park in Potsdam, N.Y., Clarkson is a nationally recognized research university for undergraduates with select graduate programs in signature areas of academic excellence directed toward the world’s pressing issues. Through 50 rigorous programs of study in engineering, business, arts, sciences and health sciences, the entire learning-living community spans boundaries across disciplines, nations and cultures to build powers of observation, challenge the status quo, and connect discovery and engineering innovation with enterprise.
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