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Title: | Studies regarding ZnS:Mn nanopowders prepared from single source molecular precursor using microwave-assisted decomposition |
Authors: | Cadis, Adrian-Ionut Muresan, L. E. Perhaita, I. Popovici, E.-J. Barbu-Tudoran, L. Indrea, E. |
Keywords: | Chalcogenides Luminescence Thermogravimetry Thermal analysis |
Issue Date: | 2016 |
Publisher: | Elsevier Ltd |
Citation: | Cadiş, A. I., Muresan, L. E., Perhaiţa, I., Popovici, E. J., Barbu-Tudoran, L., & Indrea, E. (2016). Studies regarding ZnS: Mn nanopowders prepared from single source molecular precursor using microwave-assisted decomposition. Materials Research Bulletin, 84, 57-64. |
Abstract: | Nanocrystalline undoped and manganese doped zinc sulphide (ZnS) powders were prepared by microwave—assisted solvothermal decomposition of zinc-manganese diethyldithiocarbamate as single-source molecular precursor. The precursors are being obtained in aqueous solution, from sodium diethyldithiocarbamate and zinc-manganese acetate mixtures containing variable amounts of manganese. Complementary investigations such as: thermal analysis, X-ray diffraction, SEM and BET were used to characterize both the precursors and phosphors. After the solvothermal treatment, the specific surface area of the powders increases from 2.04 m2 /g to 154.5 m2 /g. Phosphor samples consist of small particles (-12 nm) which present a high tendency to form spherical agglomerations. Photoluminescence spectra show a dominant yellow emission peak at 568 nm accompanied by several weaker peaks. In this paper, we discuss about the manganese incorporation effect in ZnS lattice concerning the morpho-structural and luminescent characteristics of the samples. |
URI: | https://www.um.edu.mt/library/oar/handle/123456789/113372 |
Appears in Collections: | Scholarly Works - FacEngMME |
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