News Column

New Findings from Zhengzhou University in the Area of Nanoparticles Described

February 28, 2014



By a News Reporter-Staff News Editor at Science Letter -- A new study on Nanoparticles is now available. According to news reporting originating in Zhengzhou, People's Republic of China, by NewsRx journalists, research stated, "PbF2:Yb3+,Er3+ nanoparticles were synthesized using the hydrothermal method. The upconversion (UC) luminescence properties of products obtained under different Yb3+ doping concentrations and annealing temperatures were then investigated."

The news reporters obtained a quote from the research from Zhengzhou University, "As the Yb3+ concentration increased, the product structures transformed from a mixed phase to a cubic phase. Their total emission intensities, however, were remarkably low. After annealing, the UC emission of the products was enhanced because of their increased grain size. The maximum emission was obtained with 7% Yb3+."

According to the news reporters, the research concluded: "The products were applied in a hydrogenated amorphous silicon solar cell, and an external quantum efficiency of 0.04% was measured under the illumination of a 980 nm laser at 4.8 W/cm(2)."

For more information on this research see: Up-conversion luminescence in Yb3+-Er3+ co-doped PbF2 nanoparticles synthesized using the hydrothermal method. Journal of Luminescence, 2014;146():435-439. 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 correspondents report that additional information may be obtained by contacting F. Yang, Zhengzhou Univ, Dept. of Phys, Key Lab Mat Phys, Zhengzhou 450052, People's Republic of China. Additional authors for this research include C. Liu, D. Wei, Y.S. Chen, J.X. Lu and S.E. Yang (see also Nanoparticles).

Keywords for this news article include: Asia, Zhengzhou, Nanotechnology, Emerging Technologies, People's Republic of China

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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