Photoluminescence of ZnO:Eu3+ Nanoflowers
The synthesis of ZnO:Eu3+ nanoflowers by a low-temperature hydrothermal route is described. Characterization of the materials was performed by ESEM, XRD and FTIR spectra. The 355 nm excited photoluminescence spectra at 10 K do not indicate the presence of Eu2+
or the ZnO defect states which give rise to green or red broadband emission. Excitation into the ZnO conduction band at low temperature does not give emission from Eu3+. Selective excitation of the Eu3+ emission shows that Eu3+ ions occupy a variety of different
sites, of which one of them is similar to Eu3+ in C-type Eu2O3.
Keywords: DOPED ZINC OXIDE; EU2O3; NANOFLOWERS; PHOTOLUMINESCENCE; SELECTIVE EXCITATION
Document Type: Research Article
Publication date: 01 March 2008
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