Article ID Journal Published Year Pages File Type
1517878 Journal of Physics and Chemistry of Solids 2007 5 Pages PDF
Abstract

CdS particles with crystallite size of 5–12 nm have been prepared via acoustic wave stimulated (sonochemical) route and microwave initiated combustion method. X-ray line broadening and transmission electron microscopy (TEM) suggest that sonochemical powders are more amorphous (5–10 nm) compared to microwave-synthesized sulphides (10–15 nm). The photoluminescent (PL) properties of powders with size <10 nm show a clearly blue shifted, resolved emission with full-width at half-maxima (FWHM) ∼100 nm, while powders with size >15 nm show dominant blue to green narrow emission with FWHM ∼60 nm. The mechanistic details of the synthetic route appear to affect the morphology and consequently the PL properties to a significant extent.

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Physical Sciences and Engineering Materials Science Electronic, Optical and Magnetic Materials
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