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AN EFFICIENT Li2SrSiO4:Tb3+ PHOSPHOR FOR SOLID STATE LIGHTING
P.P. Bhure, S.P. Puppalwar, S.J. Dhoble

Published in: International Journal of Current Engineering And Scientific Research ( IJCESR)
Volume- 5, Issue-1, pp.156-160, Jan 2018
DPI :-> 16.10046.IJCESR.2018.V5I1.156160.2341



Abstract
A series of Tb3+ doped Li2SrSiO4 phosphors were prepared by high temperature solid state reaction. The structure and luminescent properties of Li2SrSiO4:Tb3+ phosphor was characterized by X-ray diffraction and scanning electron microscopy (SEM), photoluminescence excitation (PLE) and emission (PL) spectra were utilized. From Xray diffraction (XRD) patterns, it is indicated that the phosphor Li2SrSiO4 forms without impurity phase at 900°C. The photoluminescence (PL) excitation spectra indicate that the Li2SrSiO4:xTb3+ phosphors can be effectively excited by ultraviolet (244 nm) light. The emission properties of Li2SrSiO4:Tb3+ phosphors are strongly dependent on the concentration of Tb3+. The stronger blue and green emission was presented here. The concentration quenching effect for Tb3+ was found at the optimum doping concentration of 0.5 mol%.

Key-Words / Index Term
Luminescence; Phosphor; Li2SrSiO4:Tb3+; Rare earth; Solid state lighting.

How to cite this article
P.P. Bhure, S.P. Puppalwar, S.J. Dhoble , “AN EFFICIENT Li2SrSiO4:Tb3+ PHOSPHOR FOR SOLID STATE LIGHTING”, International Journal of Current Engineering And Scientific Research ( IJCESR), 5, Issue-1, pp.156-160, Jan 2018. DPI:16.10046.IJCESR.V5.I1.2341