News Column

Findings from COMSATS Institute of Information Technology in Molecular Structures Reported

June 13, 2014



By a News Reporter-Staff News Editor at Science Letter -- Investigators publish new report on Molecular Structures. According to news reporting originating from Lahore, Pakistan, by NewsRx correspondents, research stated, "Eu3+-doped lead sodium tellurite glasses containing silver nanoparticles (NPs) were synthesized by melt-quenching technique and annealed for different time intervals at above the glass transition temperature. The glasses were characterized by UV-Vis-IR absorption, photoluminescence spectroscopy and transmission electron microscope imaging."

Our news editors obtained a quote from the research from the COMSATS Institute of Information Technology, "Four absorption peaks of Eu3+ ion were observed due to transitions from ground state to different excited states in 400-600 nm region. The surface plasmon resonance (SPR) peak of silver NPs was probed at 632 nm. Five emission lines were recorded at 568, 587, 614, 650 and 704 nm which were intensified in the order of similar to 1.9 times for heat-treated samples containing silver NPs. The average size of NPs was estimated to be similar to 10 nm. Different mechanisms for interaction of light with metal and luminescent ions are discussed. Such enhancements are attributed to the strong local electric field induced by SPR of silver NPs as the major factor, and energy transfer from surface of silver NP to Eu3+ ion."

According to the news editors, the research concluded: "The glasses show promising properties for optical applications."

For more information on this research see: Nano-silver enhanced luminescence of Eu3+-doped lead tellurite glass. Journal of Molecular Structure, 2014;1065():39-42. Journal of Molecular Structure can be contacted at: Elsevier Science Bv, PO Box 211, 1000 Ae Amsterdam, Netherlands. (Elsevier - www.elsevier.com; Journal of Molecular Structure - www.elsevier.com/wps/product/cws_home/500850)

The news editors report that additional information may be obtained by contacting M.R. Dousti, COMSATS Inst Informat Technol, Dept. of Phys, Lahore 54000, Pakistan. Additional authors for this research include M.R. Sahar, M.S. Rohani, A. Samavati, Z.A. Mahraz, R.J. Amjad, A. Awang and R. Arifin (see also Molecular Structures).

Keywords for this news article include: Asia, Lahore, Pakistan, Molecular Structures

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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