Investigation of Luminescence Properties of Eu3+, Dy3+ and Gd3+ Doped MgAl2Si2O8 Red-emitting Phosphors
JOURNAL OF THE CHINESE CHEMICAL SOCIETY, vol.62, no.1, pp.47-51, 2015 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 62 Issue: 1
- Publication Date: 2015
- Doi Number: 10.1002/jccs.201400294
- Journal Name: JOURNAL OF THE CHINESE CHEMICAL SOCIETY
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.47-51
- Keywords: Aluminosilicates, Photoluminescence, Thermoluminescence
- Erciyes University Affiliated: Yes
Abstract
Rare-earth-doped aluminosilicates of alkaline earth MgAl2Si2O8: Eu3+, Dy3+ and MgAl2Si2O8: Eu3+, Gd3+ were synthesized by the solid state reaction method at 1300 degrees C. The phosphors were characterized by X-ray powder diffraction (XRD), photoluminescence (PL), thermoluminescence (TL) and scanning electron microscopy (SEM). X-ray powder diffraction studies show that the phosphors were crystallized in the triclinic crystal system. The phosphors show characteristic broad band phosphorescence of Eu3+. This broad band phosphorescence has red emission bands in the range of 580-705 nm corresponding to D-5(0) -> F-7(j) (j:0,2,3,4) transitions of Eu3+.