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Issue 13, 2007
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Semiconductor–polymer hybrid colloidal nanoparticles

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A simple conventional emulsion polymerization approach is developed to synthesize hybrid colloidal particles consisting of semiconductor nanocrystals and organic polymers. A uniform distribution of CdSe nanocrystals in composite hybrid particles of ∼20 nm diameter with relatively narrow size distribution is obtained. Transmission electron microscopy, dynamic light scattering and spectroscopic measurements are carried out to elucidate possible mechanisms of hybrid colloidal nanoparticle formation. The effect of crosslinking on the robustness of hybrid colloidal nanoparticles is examined. The versatility of our emulsion polymerization approach is demonstrated by synthesizing hybrid colloids with different monomers. To address photoluminescence loss, a ZnS coating on CdSe nanocrystals is employed to preserve the photoluminescence while maintaining the same average size, size distribution, and composition of the final hybrid nanoparticles. These semiconductor–polymer hybrid colloidal nanoparticles with relatively narrow size distribution may be useful in incorporating semiconductor nanocrystals into conventional lithographic techniques for developing novel nanoscale patterning schemes as well as in extending currently available self-assembly methods.

Graphical abstract: Semiconductor–polymer hybrid colloidal nanoparticles

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Publication details

The article was received on 30 Oct 2006, accepted on 07 Dec 2006 and first published on 10 Jan 2007

Article type: Paper
DOI: 10.1039/B615712B
Citation: J. Mater. Chem., 2007,17, 1284-1291
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    Semiconductor–polymer hybrid colloidal nanoparticles

    B. H. Lee, K. Kwon and M. Shim, J. Mater. Chem., 2007, 17, 1284
    DOI: 10.1039/B615712B

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