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Issue 11, 2011
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Hierarchical superstructure of alkylamine-coated ZnS nanoparticle assemblies

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We describe methodology for producing highly uniform, ordered and reproducible superstructures of surfactant-coated ZnS nanorod and nanowire assemblies, and propose a predictive multiscale “packing model” for superstructure formation based on electron microscopy and powder X-ray diffraction data on the superstructure, as well as on individual components of the nanostructured system. The studied nanoparticles showed a hierarchical structure starting from the individual faceted ZnS inorganic cores, onto which the crystalline surfactant molecules are adsorbed, to the superstructure of the nanoparticle arrays. Our results point out the critical role of the surfactant headgroup and polarity in nanoparticle assembly, and demonstrate the relationship between the molecular structure of the surfactant and the resulting superstructure of the nanoparticle assemblies.

Graphical abstract: Hierarchical superstructure of alkylamine-coated ZnS nanoparticle assemblies

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The article was received on 26 Jun 2010, accepted on 21 Jan 2011 and first published on 14 Feb 2011

Article type: Paper
DOI: 10.1039/C0CP00999G
Citation: Phys. Chem. Chem. Phys., 2011,13, 4974-4979

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    Hierarchical superstructure of alkylamine-coated ZnS nanoparticle assemblies

    N. Belman, J. N. Israelachvili, Y. Li, C. R. Safinya, V. Ezersky, A. Rabkin, O. Sima and Y. Golan, Phys. Chem. Chem. Phys., 2011, 13, 4974
    DOI: 10.1039/C0CP00999G

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