Author： Lu Huijun Ballato John
Publisher： Society of Glass Technology
ISSN： 0031-9090
Source： Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B, Vol.47, Iss.2, 2006-04, pp. : 96-100
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Abstract
Sol-gel silica monoliths containing two-dimensional (2D) silver nano-particles and Eu3+ dopants were prepared through a directed copolymer synthesis. Photoluminescent properties of Eu3+ were examined as a function of silver nanoparticle concentration. Luminescent intensity of the sol-gel samples was found to be enhanced in the presence of silver nano-particles with low particle concentration, which is thought to result from the surface plasma resonance of the silver nanoparticles. It was found that silver nanoparticles also affected the hypersensitivity ratio of Eu3+ luminescence implying preferential coupling to the plasmon-mediated electric dipoles of the Ag nanoparticles. The observed enhancements in these thermally and mechanically robust nanocomposite glasses could be of great value for active telecommunication and displays applications.
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