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Title: Investigation on the luminescence properties of Eu{sup 3+}/Tb{sup 3+}:Y{sub 3}Al{sub 5}O{sub 12} phosphors

Eu{sup 3+}/Tb{sup 3+} singly and co-doped Y{sub 3}Al{sub 5}O{sub 12} (YAG) phosphors were synthesized by the modified sol-gel method. The prepared phosphors were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscope (FE-SEM) and luminescence analysis. Cubic YAG formation was confirmed by XRD. A strong characteristic emission from Eu{sup 3+} and Tb{sup 3+} ions was identified and the influence of doping concentration was studied. Energy transfer mechanism was observed from Tb{sup 3+} to Eu{sup 3+} ions in the co-doped phosphor. The CIE co-ordinates cover orange-red to green with increasing the Tb{sup 3+}ion concentration.
Authors:
; ; ;  [1]
  1. Crystal Growth Centre, Anna University, Chennai-600025 (India)
Publication Date:
OSTI Identifier:
22490596
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTROSCOPY; ALUMINATES; CONCENTRATION RATIO; DOPED MATERIALS; ENERGY TRANSFER; EUROPIUM IONS; FIELD EMISSION; FOURIER TRANSFORMATION; INFRARED SPECTRA; LUMINESCENCE; NEODYMIUM LASERS; PHOSPHORS; SCANNING ELECTRON MICROSCOPY; SOL-GEL PROCESS; TERBIUM IONS; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS