| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1646001 | Materials Letters | 2013 | 4 Pages |
Eu3+ ions activated Gd2O3 flower-like phosphor powders were prepared by a facile synthesis route. The growth mechanism was examined using the scanning electron microscope images as a function of reaction time. The X-ray diffraction pattern confirmed the cubic structure. The excitation spectra showed the efficient energy transfer from the Gd3+ to Eu3+ ions and the emission spectra exhibited the strongest emission band at wavelengths of ∼611 nm. The Eu3+ concentration was optimized to be 5 mol%. The emission intensity and color purity of Gd2O3:5 mol% Eu3+ were high as compared to the commercial Y2O3:Eu3+ phosphor.
Graphical AbstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Gd2O3:Eu3+ nanoflowers were prepared by a facile synthesis route. ► PEG and citric acid play a key role in the growth of nanoflowers. ► The Gd2O3:Eu3+ nanoflowers show the strongest red emission with high color purity as compared to the commercial Y2O3:Eu3+ phosphor.
