| Abstract
| - The nanocrystals of CeF3 with the hexagonal structure and different morphologies such as the disk, the rod,and the dot have been successfully synthesized via a mild ultrasound assisted route from an aqueous solutionof cerium nitrate and different fluorine sources (KBF4, NaF, NH4F). The use of different fluorine sources hasa remarkable effect on the morphology of the final product. The luminescence and UV−vis absorption propertiesof CeF3 nanocrystals with different morphologies have been investigated. Compared with other shapenanocrystals, the luminescence intensity of the disklike nanocrystals is obviously enhanced. It is suggestedthat the function-improved materials could be obtained by tailoring the shape of the CeF3 nanocrystals.
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