Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 13, Issue 27, Pages 7708-7714Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200601727
Keywords
hydrothermal synthesis; lanthanides; luminescence; nanostructures; phosphates
Categories
Ask authors/readers for more resources
Uniform LnPO(4)center dot xH(2)O (Ln = Y, La-Nd, Sm-Lu) nanocrystals that have controllable OD (spherelike), ID (rodlike), and 2D (polygonlike) structures have been systematically synthesized by means of a hydrothermal method by using, a mixed solvent of water and ethanol. Transmission electron microscopy images and SEAD (selected area electron diffraction) patterns revealed that the products are highly crystalline and have structurally uniform shapes. IR, Raman, and electron energy loss spectroscopies gave spectra that indicated that an amount of oleic acid molecules were presented at the surface of individual nanocrystals. These nanocrystals have hydrophobic surfaces and could be easily dispersed in nonpolar solvents. Moreover, a creditable synthetic mechanism for nucleation, growth, and shape evolution has been proposed. Eu3+ doped products were also prepared by using the same synthetic process. The Eu3+ doped products exhibited an orange-red luminescence that is ascribed to an electron transition within the 4f shell. Analysis of the photoluminescent spectra revealed that the optical properties are strongly dependent on their morphologies.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available