Murase, N. and Jagannathan, R. and Kanematsu, Y. and Kawasaki, Y. and Tomita, A. and Yazawa, T. and Kushida, T. (2000) Preparation and fluorescence properties of Eu3+ - doped strontium chloroapatite nanocrystals. Journal of Luminescence, 87 (01). pp. 488-490. ISSN 0022-2313

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Strontium chloroapatite nanocrystals doped with trivalent europium ions were prepared by an aqueous colloidal method. This mean diameter of the crystal was found to be ~3 nm by transmission electron microscopy, although for the most part, they were agglomerated. The X-ray diffraction patterns show that the lattice constants of nanocrystals are contracted by ~2% compared to the corresponding bulk counterpart, and also that they further decrease by annealing at 200-300 °C. The fluorescence spectrum of nanocrystals exhibited blue shifts of both the 5D0 – 7F2 transition and the charge transfer excitation band, and an apparent enhancement in the strength of the hypersensitive 5D0 – 7F2 transition

Item Type: Article
Uncontrolled Keywords: Trivalent europium; Apatite; Nanocrystal
Subjects: Electrochemical Materials Science
Depositing User: ttbdu cecri
Date Deposited: 18 Dec 2012 06:27
Last Modified: 18 Dec 2012 06:27

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