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The Golden Road: Synthesis and Surface Chemistry of Gold Nanocrystals

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If you have a question about this talk, please contact Lingtao Kong .

BP Sustainability Lecture

That “finely-divided metals” have unusual optical properties has been known since ancient times. Gold, for instance, can appear red, green, blue or brown on the nanoscale. In this talk I will describe synthetic methods to create colloidal gold nanocrystals of tunable size, shape, and therefore tunable optical properties. The structure-directing agents in the synthesis are thought to bind to different crystal facets of the growing nanocrystals and therefore dictate nanocrystal shape: new, improved imaging methods are beginning to allow us to see if this is true. The surface is where the nanocrystals meet and greet the rest of the world; strategies to coat them isotropically and anisotropically with hard and soft shells will be discussed.

This talk is part of the Chemistry Departmental-wide lectures series.

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