By a News Reporter-Staff News Editor at Physics Week -- Current study results on Nanoparticles have been published. According to news reporting out of Tamil Nadu, India, by VerticalNews editors, research stated, "Size controlled tin sulfide (SnS) quantum dots (QDs) are achieved by a novel hydrothermal method. The X-ray diffraction (XRD) pattern of the SnS nanopowder confirms the orthorhombic structure."
Our news journalists obtained a quote from the research from Madras Christian College, "The as-prepared SnS nanoparticles are characterized by optical absorption and photoluminescence (PL) spectroscopic analyzes. The direct and indirect band gaps of the QDs are estimated and blue shift is observed for the SnS nanopowder when compared to the bulk material. The low temperature PL spectrum of the SnS nanoparticles is recorded at 35 K and the results are discussed. The scanning electron micrographs (SEM) suggest the presence of size controlled spherical aggregates of smaller as well as larger sizes. The examination of the SnS QDs using transmission electron micrographs (TEM) reveals the predominance of particles with a spherical shape with the average particle size of 3-5 nm. The results obtained from the present work are encouraging in terms of quality of crystallites, size and shape when compared to the previously reported works."
According to the news editors, the research concluded: "The HRTEM study indicates the evidence for the formation of a few anisotropic nanocrystals."
For more information on this research see: Investigation on a one-pot hydrothermal approach for synthesizing high quality SnS quantum dots. Journal of Alloys and Compounds, 2013;579():594-598. Journal of Alloys and Compounds can be contacted at: Elsevier Science Sa, PO Box 564, 1001 Lausanne, Switzerland. (Elsevier - www.elsevier.com; Journal of Alloys and Compounds - www.elsevier.com/wps/product/cws_home/522468)
Our news journalists report that additional information may be obtained by contacting A. Muthuvinayagam, Madras Christian College, Dept. of Chem, Madras 600059, Tamil Nadu, India. Additional authors for this research include T.M. David and P. Sagayaraj.
Keywords for this news article include: Asia, India, Tamil Nadu, Quantum Dots, Nanotechnology, Quantum Physics, Emerging Technologies
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