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Paul Alivisatos, University of California, Berkeley
Nanocrystals with tightly controlled size distribution and well-defined shapes (spheres, disks, rods, ∑) can now be prepared quite readily. These nanocrystals can, in turn, be transformed chemically from one material to another, and these transformations will be the subject of the talk. Chemical reactions in nanocrystals can proceed by simplified kinetics compared to bulk solids; further, the products can be spatially complex arrangements of connected materials. In this sense, the nanocrystal can be an important model system for understanding chemical reactions in the solid state more generally. Examples covered will be the formation of hollow nanocrystals through the nanoscale Kirkendall effect, cation exchange reactions in nanocrystals, and nanocrystal splitting reactions.
Host: Cody Nash
Companion Tutorial: Biological Imaging Applications of Nanocrystals
Tuesday, April 4, 2006
10:30 am - 11:30 am, 153 Noyes