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Issue 42, 2011
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Chiral nanoparticle assemblies: circular dichroism, plasmonic interactions, and exciton effects

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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.

Graphical abstract: Chiral nanoparticle assemblies: circular dichroism, plasmonic interactions, and exciton effects

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Publication details

The article was received on 25 May 2011, accepted on 09 Aug 2011 and first published on 14 Sep 2011


Article type: Feature Article
DOI: 10.1039/C1JM12345A
Citation: J. Mater. Chem., 2011,21, 16806-16818
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    Chiral nanoparticle assemblies: circular dichroism, plasmonic interactions, and exciton effects

    A. O. Govorov, Y. K. Gun'ko, J. M. Slocik, V. A. Gérard, Z. Fan and R. R. Naik, J. Mater. Chem., 2011, 21, 16806
    DOI: 10.1039/C1JM12345A

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