Title :
Luminescence properties of nanocrystalline SrAl2O4: Eu, Dy phosphor synthesized by combustion technique
Author :
Kshatri, D.S. ; Khare, Ashish ; Mishra, Shivakant
Author_Institution :
Dept. of Phys., Shri Shankaracharya Inst. of Prof. Manage. & Technol., Raipur, India
Abstract :
The nanocrystalline SrAl2O4: Eu2+, Dy3+ phosphor powders have been synthesized by combustion process. The as-obtained phosphor is characterized by means of X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDX) studies. The photoluminescence (PL), thermoluminescence (TL) and the afterglow properties of the SrAl2O4: Eu2+, Dy3+ phosphor are also investigated. After irradiated with ultraviolet (UV) light, the phosphors emitted green long lasting phosphorescence with an excitation peak at 340 nm and emission peak at 514 nm ascribed to the characteristic 5d-4f transition of Eu2+.
Keywords :
X-ray chemical analysis; X-ray diffraction; combustion synthesis; dysprosium; europium; nanofabrication; nanostructured materials; phosphorescence; phosphors; photoluminescence; scanning electron microscopy; strontium compounds; thermoluminescence; ultraviolet radiation effects; EDX; SEM; SrAl2O4:Eu,Dy; X-ray diffraction; XRD; afterglow properties; combustion method; energy dispersive X-ray spectroscopy; luminescence properties; nanocrystalline phosphors; phosphorescence; photoluminescence; scanning electron microscopy; thermoluminescence; ultraviolet light irradiation; Combustion; Equations; Lattices; Matrix decomposition; Nickel; X-ray diffraction; Nanocrystalline; afterglow decay; photoluminescence; thermoluminescence;
Conference_Titel :
Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET), 2013 International Conference on
Conference_Location :
Chennai
Print_ISBN :
978-1-4799-1377-0
DOI :
10.1109/ICANMEET.2013.6609235
