期刊
OPTICAL MATERIALS
卷 28, 期 12, 页码 1401-1404出版社
ELSEVIER
DOI: 10.1016/j.optmat.2005.07.008
关键词
nanoparticle; synthesis; luminescent; fluoride
We report an original way to synthesise single-crystal PbF2 nanoparticles by selective chemical attack of a bulk nanocomposite oxyfluoride glass-ceramic. Free of impurities and homogeneously doped with Er3+ ions, the particles are of narrow size dispersion around 15 nm and weakly aggregated. The nanocrystallites emit a very intense green and blue up conversion fluorescence after infrared excitation. The doping level and the size of the particles is finely driven through the precursor glass-ceramic synthesis and composition. (c) 2005 Elsevier B.V. All rights reserved.
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