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New Luminescence Findings from Bhabha Atomic Research Center Described

May 16, 2014



By a News Reporter-Staff News Editor at Science Letter -- Data detailed on Luminescence have been presented. According to news reporting out of Maharashtra, India, by NewsRx editors, research stated, "Photoluminescence (PL) and Thermally stimulated luminescence (TSL) properties of both virgin and Ce doped ZnAl2O4 phosphors were investigated. The phosphors were synthesized via sol gel route using the respective metal nitrates and citric acid."

Our news journalists obtained a quote from the research from Bhabha Atomic Research Center, "The nano particle nature of the phosphor was confirmed by X ray diffraction and dynamic light scattering techniques. Time resolved photoluminescence and photo-acoustic spectroscopic techniques were used to characterize the emission and excitation properties of the system. TSL properties of the nanophosphor showed a single glow peak at 468 K. Various trap parameters and the kinetics for the glow peak were evaluated assuming the Arrhenius behavior for the system. Electron spin resonance (ESR) technique was used to identify the chemical nature of the traps/defects responsible for the glow peak. The emission spectrum of the nanophosphor was plotted on a standard CIE diagram which suggested a strong bluish violet emission from the phosphor system."

According to the news editors, the research concluded: "Further, the intensity of the phosphor was compared with that of commercial blue phosphor to know the commercial utility of the prepared phosphors."

For more information on this research see: Luminescence characteristics of blue emitting ZnAl2O4: Ce nanophosphors. Journal of Luminescence, 2014;149():118-124. Journal of Luminescence can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Luminescence - www.elsevier.com/wps/product/cws_home/505700)

Our news journalists report that additional information may be obtained by contacting M. Kumar, Bhabha Atom Res Center, Div Radiochem, Mumbai 400085, Maharashtra, India. Additional authors for this research include M. Mohapatra and V. Natarajan (see also Luminescence).

Keywords for this news article include: Asia, India, Maharashtra, Luminescence

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


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Source: Science Letter


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