Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5026375 | Optik - International Journal for Light and Electron Optics | 2016 | 6 Pages |
Abstract
A potassium dysprosium orthophosphate K3Dy(PO4)2 has been prepared using high temperature flux method and structurally characterized by single crystal X-ray diffraction (SC-XRD) analysis. Its structure features a two-dimensional (2D) layer structure that is composed of [Dy(PO4)2]â anionic layers and Kâ cationic layers alternatively stacking along the a-axis. The diverse excitation and emission photoluminescence spectra, fluorescence lifetime and color CIE coordinates for K3Dy(PO4)2 were discussed. Although with high Dy3+ concentration, the emission spectrum excited at 350 nm shows strong green-yellow emission bands corresponding to the 4F9/2 â 6H15/2 and 4F9/2 â 6H13/2 transitions of Dy3+ ions, respectively. The results show that K3Dy(PO4)2 can be potentially used as a green-yellow phosphor for fields of near UV-excited white-light-emitting diode and optoelectronic devices.
Related Topics
Physical Sciences and Engineering
Engineering
Engineering (General)
Authors
D. Zhao, F.X. Ma, Y.C. Fan, Hai-Yan Li, L. Zhang,