Chiral nanoparticle assemblies: circular dichroism, plasmonic interactions, and exciton effects
Citation:
Alexander O. Govorov, Yurii K. Gun'ko, Joseph M. Slocik, Valerie A. Gerard, Zhiyuan Fan and Rajesh R. Naik, Chiral nanoparticle assemblies: circular dichroism, plasmonic interactions, and exciton effects, Journal of Materials Chemistry, 21, 42, 2011, 16806-16818Download Item:
Abstract:
The paper reviews recent progress on chiral nanocrystal assemblies with induced optical chirality and
related circular dichroism. Many natural molecules and biomolecules are chiral and exhibit remarkably
strong optical chirality (circular dichroism) due to their amazingly uniform atomic composition in
a large ensemble. It is challenging to realize artificial nanoscale systems with optical chirality since the
atomic structure of artificial nanostructures may not be always controlled or even known. Nevertheless,
the artificial optical chirality has been accomplished and it is the main scope of this review. In
particular, we discuss assemblies incorporating chiral molecules, metal nanocrystals, and
semiconductor quantum dots. Plasmon-induced and plasmon-enhanced circular dichroism effects
appear in nanoscale assemblies built with metal nanocrystals, while excitonic and surface-states related
phenomena are observed in semiconductor quantum dots conjugated with chiral molecules
Author's Homepage:
http://people.tcd.ie/igounkohttp://people.tcd.ie/gerardv
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PUBLISHED
Author: GOUNKO, IOURI; GERARD, VALERIE ANNE
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Journal of Materials Chemistry;21;
42;
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