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Investigation of Luminescence Properties of Eu 3+ , Dy 3+ and Gd 3+ Doped MgAl 2 Si 2 O 8 Red‐emitting Phosphors
Author(s) -
Öztürk Esra,
Kalaycioglu Nilgun Ozpozan,
Uzun Erdem
Publication year - 2015
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201400294
Subject(s) - phosphor , thermoluminescence , photoluminescence , chemistry , phosphorescence , luminescence , doping , triclinic crystal system , analytical chemistry (journal) , scanning electron microscope , powder diffraction , alkaline earth metal , x ray crystallography , crystal structure , crystallography , mineralogy , diffraction , alkali metal , fluorescence , materials science , optics , physics , optoelectronics , organic chemistry , chromatography , composite material
Rare‐earth‐doped aluminosilicates of alkaline earth MgAl 2 Si 2 O 8 : Eu 3+ , Dy 3+ and MgAl 2 Si 2 O 8 : Eu 3+ , Gd 3+ were synthesized by the solid state reaction method at 1300 o 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 Eu 3+ . This broad band phosphorescence has red emission bands in the range of 580–705 nm corresponding to 5 D 0 → 7 F j (j:0,2,3,4) transitions of Eu 3+ .