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Researchers from Seoul National University Describe Findings in Nanoparticles (Influence of cobalt concentration on structural and optical properties...

July 15, 2014



Researchers from Seoul National University Describe Findings in Nanoparticles (Influence of cobalt concentration on structural and optical properties of ZnS quantum dots)

By a News Reporter-Staff News Editor at Physics Week -- Investigators publish new report on Nanoparticles. According to news reporting out of Seoul, South Korea, by VerticalNews editors, research stated, "ZnS and Co-doped ZnS nanoparticles have been prepared by simple chemical precipitation method. Zinc acetate, sodium sulfide, and cobalt nitrate have been used as precursors for the preparation of Co-doped ZnS quantum dots."

Our news journalists obtained a quote from the research from Seoul National University, "The X-ray diffraction results revealed that the undoped and Co-doped ZnS quantum dots exhibit hexagonal structure. The average grain size of quantum dot was found to lie in the range of 2.6-3.8 nm. The surface morphology has been studied using scanning electron microscope. The compositional analysis results confirm the presence of Co, Zn and S in the sample. The optical properties of undoped and Co-doped ZnS quantum dots have been studied using absorption spectra."

According to the news editors, the research concluded: "TEM results show that undoped and Co-doped ZnS nanoparticles exhibit a uniform size distribution with average size of 2.5-3.4 nm."

For more information on this research see: Influence of cobalt concentration on structural and optical properties of ZnS quantum dots. Journal of Sol-Gel Science and Technology, 2014;71(1):152-158. Journal of Sol-Gel Science and Technology can be contacted at: Springer, Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands. (Springer - www.springer.com; Journal of Sol-Gel Science and Technology - www.springerlink.com/content/0928-0707/)

Our news journalists report that additional information may be obtained by contacting R.S. Kumar, Seoul National University, Dept. of Elect & Comp Engn, Seoul, South Korea. Additional authors for this research include V. Veeravazhuthi, D.V. Shankar, N. Muthukumarasamy and M. Thambidurai.

Keywords for this news article include: Asia, Seoul, South Korea, Quantum Dots, Nanotechnology, Quantum Physics, Emerging Technologies

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Physics Week


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