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Author Game, D. N. ♦ Taide, S. T. ♦ Khan, Z. S. ♦ Omanwar, S. K. ♦ Ingale, N. B.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CRYSTALS ♦ EUROPIUM ADDITIONS ♦ EXCITATION ♦ LIGHT EMITTING DIODES ♦ LITHIUM COMPOUNDS ♦ MONOCLINIC LATTICES ♦ PHOSPHATES ♦ PHOSPHORS ♦ PHOTOLUMINESCENCE ♦ POWDERS ♦ SOLIDS ♦ STRONTIUM COMPOUNDS ♦ SYNTHESIS ♦ VISIBLE RADIATION ♦ X RADIATION ♦ X-RAY DIFFRACTION
Abstract A novel method to prepare orthophosphate LiSrPO{sub 4}: Eu{sup 2+} phosphor for white light-emitting diodes (w-LEDs) is given in this paper. Phosphor was successfully synthesized by Pechini (citrate gel) method which is efficient than conventional high temperature solid state reaction. X-ray powder diffraction (XRD) analysis confirmed the single phase formation of LiSrPO{sub 4}:Eu{sup 2+} with monoclinic crystal structure. Luminescence results showed that the phosphor could be efficiently excited by near UV and exhibited bright blue emission at λ{sub em} = 420 nm corresponding to 5d– 4f transition of Eu{sup 2+}. The phosphor exhibits blue emission bands under 350 nm excitation. This mercury-free excitation is useful for solid state lighting and light-emitting diode (LED). Hence it could be useful for solid state lighting and light-emitting diode (LED) application.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-06
Publisher Place United States
Volume Number 1728
Issue Number 1


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