| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10407044 | Materials Science in Semiconductor Processing | 2013 | 6 Pages |
Abstract
Water-soluble ZnS/ZnO/CdS (0.1-0.5Â M) nanocomposites were successfully synthesized by the chemical precipitation method in air. X-ray diffraction (XRD), transmission electron microscopy (TEM), ultraviolet-visible (UV-vis), photoluminescence (PL) and thermo gravimetric-differential thermal analysis (TG-DTA) were used to characterize the synthesized products. It is found that the ZnS/ZnO/CdS (0.1-0.5Â M) core-shell nanocomposite is cubic and hexagonal mixed structure. TEM results showed the prepared nanocomposites are monodispersed and uniform in size. It is confined within 4.3-5.6Â nm range. UV-vis absorption spectra were confined growth process of multi shells on ZnS. It showed a red shift with respect to the shells thickness. Fluorescence measurement showed the emission band which exists in the visible region. Stability and phase transition were identified by TG-DTA analysis. The results show an improved florescence property, indicating their potential applications in biological labeling.
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Authors
V. Ramasamy, C. Anandan, G. Murugadoss,