Merck

Spectroscopic properties of Yb3+ doped CaNb2O6 phosphor.

Journal of nanoscience and nanotechnology (2014-04-18)
Ru Zhou, Xiantao Wei, Min Yin
ABSTRACT

The spectroscopic measurements of orthorhombic CaNb2O6 phosphor doped with Yb3+ ions have been performed. Low temperature spectra indicate that Yb3+ ions may occupy three types of nonequivalent sites inside the CaNb2O6 lattice: a main Yb3+ site dominating the near-infrared emission, and two other minor sites of similar behaviors to each other. An attempt to determine the Stark sublevels energies of the 2F7/2 and 2F5/2 manifolds of three Yb3+ nonequivalent ions was carried out. The fluorescence lifetimes associated to the emission lines of Yb3+ ions located at the main site and minor sites are also quite different. Furthermore, there exists energy transfer from the main site to the minor sites.

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Ytterbium, lump, 25g, max. size 25mm, 99.9%
Ytterbium, foil, 25x25mm, thickness 0.125mm, as rolled, 99%
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Ytterbium, lump, 50g, max. size 25mm, 99.9%
Ytterbium, foil, 25x25mm, thickness 0.25mm, as rolled, 99%
Ytterbium, rod, 100mm, diameter 10.0mm, cast, 99%
Ytterbium, rod, 50mm, diameter 10.0mm, cast, 99%
Ytterbium, foil, 50x50mm, thickness 0.25mm, as rolled, 99%
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Ytterbium, foil, not light tested, 25x25mm, thickness 0.025mm, as rolled, 99%
Ytterbium, foil, not light tested, 50x50mm, thickness 0.025mm, as rolled, 99%
Ytterbium, foil, 50x50mm, thickness 0.125mm, as rolled, 99%
Ytterbium, lump, 100g, max. size 25mm, 99.9%
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