Cover Page September-2016-Advanced Materials Letters

Advanced Materials Letters

Volume 7, Issue 9, Pages 765-769, September 2016
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NUV Excited K2SrP2O7: RE3+ (RE = Sm, Tb, Eu, Dy) Phosphors For White Light Generation 

Ketki S. Dhoble1, J. A. Wani2, S. J. Dhoble2*

1Department of Electronics & Communication, Shri Ramdeobaba College of Engineering and Management,Nagpur 440013, India

2Department of Physics, R.T.M. Nagpur University, Nagpur 440033, India

Adv. Mater. Lett., 2016, 7 (9), pp 765-769

DOI: 10.5185/amlett.2016.6182

Publication Date (Web): Jul 09, 2016

E-mail: sjdhoble@rediffmail.com

Abstract

Phosphate based compounds doped with rare earth ions are promising luminescent materials for many applications including solid state lighting. In this work photoluminescence properties of K2SrP2O7:RE3+ (RE = Sm, Tb, Eu, Dy) phosphors are presented for the first time.  K2SrP2O7:RE3+ phosphors activated with the trivalent rare earth ions were synthesized by combustion method. Phosphors were characterized for phase purity, morphology and luminescent properties. Elemental analysis was done through energy dispersive spectroscopy (EDS). The emission and excitation spectra were followed to study the luminescence characteristics of K2SrP2O7:RE3+  phosphors. The as prepared powders of RE3+ doped  K2SrP2O7 emit red, green and yellowish white light as a result of f-f transitions. The study is novel as no such luminescence data are available for this compound.

Keywords

K2SrP2O7, combustion, phosphor, luminescence, solid state lighting.

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