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Journal of Nanomaterials
Volume 2015, Article ID 136957, 8 pages
http://dx.doi.org/10.1155/2015/136957
Research Article

Size Controlled CaF2 Nanocubes and Their Dosimetric Properties Using Photoluminescence Technique

1Center of Nanotechnology, King Abdulaziz University, Jeddah 21589, Saudi Arabia
2Sciences Faculty for Girls, King Abdulaziz University, Jeddah 21589, Saudi Arabia

Received 11 July 2015; Revised 4 October 2015; Accepted 11 October 2015

Academic Editor: Piaoping Yang

Copyright © 2015 Najlaa D. Alharbi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new synthetic chemical coprecipitation route for the preparation of well-crystallized size controlled nano- and microcrystalline cubes of CaF2 is reported. Crystalline cubes in the range of 2 μm–20 nm could be synthesized and their sizes were controlled by varying the solvent : cosolvent ratio. The as-synthesized CaF2 nanocubes were characterized by different techniques. Photoluminescence (PL) emission spectrum of CaF2 nanocrystalline powder showed strong emission band at 415 nm. Moreover, the effect of Eu as a dopant on the emission spectrum of CaF2 was investigated. This dopant was found to get incorporated in its Eu2+ and Eu3+ forms. The as-produced nanocubes were exposed to UV irradiation and the corresponding PL emission was studied. Excellent results are obtained, where CaF2:Eu nanocubes were found to be highly sensitive and might be suitable for esteeming the doses of UV irradiation using the PL technique.