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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Abstract

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
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	18 Dec 2012 06:27
Last Modified:	18 Dec 2012 06:27
URI:	http://cecri.csircentral.net/id/eprint/2981

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