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