News Column

Findings from R. Viswanath and Colleagues Provides New Insights into Nanocomposites

May 27, 2014

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Nanocomposites have been published. According to news reporting originating from Karnataka, India, by NewsRx correspondents, research stated, "Uncoated ZnS, MnS and ZnS/MnS/ZnS nanocomposites were successfully synthesized by chemical co-precipitation method in air atmosphere by varying the thicknesses of MnS layer. Characterization techniques such as X-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), UV-visible absorption and photoluminescence (PL) spectroscopy were used to characterize the novel ZnS/MnS/ZnS nanocomposites."

Our news editors obtained a quote from the research, "The obtained particles were highly crystalline and monodispersed with an average particles size of 4.5-6.5 nm. The room temperature photoluminescence (PL) study of ZnS/MnS/ZnS nanocomposites showed an enhanced intensity with different concentration of manganese acetate. The presences of MnS layer in the nanocomposite have tuned the PL emission in the IR region. Addition of manganese acetate (0.1-0.4 M) in the nanocomposite showed a distinct PL emission peak centered at 740 nm i.e. in the red region with significant red shift. The PL emission of ZnS and MnS were tuned in the nonvisible IR region."

According to the news editors, the research concluded: "It is shown that the variation in thickness of MnS layer leads to an enhanced photoluminescence intensity/efficiency of ZnS/MnS/ZnS nanocomposites."

For more information on this research see: Luminescence properties of blue-red emitting multilayer coated single structure ZnS/MnS/ZnS nanocomposites. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2014;125():222-227. Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England (see also Nanocomposites).

The news editors report that additional information may be obtained by contacting R. Viswanath, Sir MV Govt Sci College, Dept. of PC Studies & Res Ind Chem, Shimoga 577302, Karnataka, India. Additional authors for this research include H.S.B. Naik, G.S.Y. Kumar, P.N.P. Kumar, K.N. Harish and M.C. Prabhakara.

Keywords for this news article include: Asia, India, Karnataka, Nanotechnology, Emerging Technologies

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Source: Life Science Weekly

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