Growth of metallic Ag nanoparticles in fluoroborate glasses doped with rare-earth ions and their optical characterization

L. P.N. Riano; Cid B. de Araujo; O. L. Malta; P. Santa Cruz; Marcos A. Couto dos Santos

doi:10.1117/12.590834

21 October 2004 Growth of metallic Ag nanoparticles in fluoroborate glasses doped with rare-earth ions and their optical characterization

L. P.N. Riano, Cid B. de Araujo, O. L. Malta, P. Santa Cruz, Marcos A. Couto dos Santos

Author Affiliations +

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.590834
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

Fluoroborate glasses have been prepared containing silver nanoparticles (NP) and rare-earth (RE) ions. Optical techniques were used for analysis of the surface plasmon (SP) band formation and to determine the influence of the NP on the RE ions luminescence. Electron microscopy was applied to measure the particles concentration and their size distributions. The techniques used allowed to identify the presence of Ag particles with diameters in the range of 5 - 200 nm. The absorption band of SP is centered at 425 nm for samples doped with Eu³⁺ and centered at 416 nm for samples with Pr³⁺. The ions luminescence shows enhancement or quenching for metallic particles of different sizes.

Citation Download Citation

L. P.N. Riano, Cid B. de Araujo, O. L. Malta, P. Santa Cruz, and Marcos A. Couto dos Santos "Growth of metallic Ag nanoparticles in fluoroborate glasses doped with rare-earth ions and their optical characterization", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.590834

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