Polymer encapsulation of CdE (E = S, Se) quantum dot ensembles via in-situ radical polymerization in miniemulsion
authors Esteves, ACC; Barros-Timmons, A; Monteiro, I; Trindade, T
nationality International
journal JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
author keywords CdS; CdSe; nanocomposites; quantum dots; miniemulsion; optical properties
keywords CDSE NANOCRYSTALLITES; INORGANIC PARTICLES; OPTICAL-PROPERTIES; NANOPARTICLES; SHELL; MONODISPERSE; COMPOSITES; MORPHOLOGY; NANOCOMPOSITE; METATHESIS
abstract Cadmium sulfide and cadmium selenide/polymer nanocomposites were prepared via in-situ radical polymerization in miniemulsion. Organically capped CdE (E = S, Se) quantum dots (QDs) were used as the starting materials and ensembles of these dots were encapsulated with no need of further surface treatment. The use of two polymer matrices was investigated: polystyrene (PS) and poly(n-butyl acrylate) (PBA). In both cases, homogenous nanocomposites were obtained and their optical properties were investigated by visible absorption and photoluminescence spectroscopy. Quantum size effects were assigned to the nanocomposites, indicating the integrity of the individual QDs upon polymer encapsulation using the miniemulsion process.
publisher AMER SCIENTIFIC PUBLISHERS
issn 1533-4880
year published 2005
volume 5
issue 5
beginning page 766
ending page 771
digital object identifier (doi) 10.1166/jnn.2005.090
web of science category Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter
subject category Chemistry; Science & Technology - Other Topics; Materials Science; Physics
unique article identifier WOS:000229119900013
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journal impact factor 1.134
5 year journal impact factor 0.999
category normalized journal impact factor percentile 17.801
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