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

fYear

2013

fDate

24-26 July 2013

Firstpage

34

Lastpage

37

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Nanomaterials and Emerging Engineering Technologies (ICANMEET), 2013 International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4799-1377-0

Type

conf

DOI

10.1109/ICANMEET.2013.6609235

Filename

6609235