| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1496128 | Optical Materials | 2009 | 5 Pages |
Abstract
Pure orthorhombic Gd3O4Br:Er3+ upconversion phosphors were synthesized by a solid-state reaction method and the structural properties of Gd3O4Br:Er3+ were investigated by X-ray diffraction; field emission scanning electron microscopy, Raman spectroscopy and Fourier transform infrared spectroscopy. The results show that Gd3O4Br has low phonon cutoff energy, indicating that Gd3O4Br:Er3+ may have high luminescent efficiency. Intense green (514-582Â nm) and strong red (645-692Â nm) upconverted luminescence of Gd3O4Br:Er3+ were observed under 980Â nm laser excitation. The bright green emission is visible to the naked eyes even for 1Â mW of the pump power (980Â nm) for Gd3O4Br:Er3+ (0.1%) samples, indicating that Gd3O4Br:Er3+ may be used as upconversion phosphors.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Xinbo Zhang, Xiaofeng Wang, Yanmin Qiao, Hai Guo,