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Self-Assembly and Raman Spectroscopy of Additive Coated Nanocrystals

Published online by Cambridge University Press:  31 January 2011

Julien Romann ,
Virginie Chevallier ,
Alexandre Merlen  and
Jean-Christophe Valmalette
Julien Romann
Affiliation:
romann@univ-tln.fr, IM2NP, UMR CNRS 6242, USTV, La Garde, France
Virginie Chevallier
Affiliation:
cheva@univ-tln.fr, IM2NP, UMR CNRS 6242, USTV, La Garde, France
Alexandre Merlen
Affiliation:
merlen@univ-tln.fr, IM2NP, UMR CNRS 6242, USTV, La Garde, France
Jean-Christophe Valmalette
Affiliation:
valmalette@univ-tln.fr, IM2NP, UMR CNRS 6242, USTV, La Garde, France
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Abstract

Copper oxalate 1 �m-sized nanocrystalline assemblies with several shapes (cushions, lenses, drilled cushions, and square rods) have been obtained by aqueous precipitation without additive, with glycerol, with PEG and with HPMC. Respective influences of these additives on the nanocrystals self-assembly are suggested from the obtained particles morphologies to provide a better understanding of this assembly process. Raman spectroscopy is used to highlight fluorescence occurring on the copper oxalate samples synthesized with additives. This additive induced fluorescence is suggested to result from specific interactions between the nanocrystals and the adsorbed additives.

Keywords

self-assemblynanostructureRaman spectroscopy
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1176: Symposium Y – Nanocrystalline Materials as Precursors for Complex Multifuntional Structures through Chemical Transformations and Self Assembly , 2009 , 1176-Y06-20
Copyright
Copyright © Materials Research Society 2009

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