Synthesis and luminescence properties of a novel red SrMoO4:Sm3+,R+ phosphor

A novel red SrMoO4:Sm3+,R+ (R+aa=aaLi+, Na+, K+) phosphor was prepared by solid state reaction method. XRD results showed that 950aaA degree C was a suitable sintered temperature for preparation of SrMoO4:Sm3+ phosphors. The emission spectra of the SrMoO4:Sm3+ phosphors consisted of some sharp emiss...

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Bibliographic Details
Published in:Solid state sciences 2011-03, Vol.13 (3), p.579-583
Main Authors: Lin, Xiang, Qiao, Xvsheng, Fan, Xianping
Format: Article
Language:English
Subjects:
Applied sciences
Charge
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Electronics
Emission
Emission spectra
Exact sciences and technology
Light-emitting diodes
Luminescence
Materials science
Materials synthesis
materials processing
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Optoelectronic devices
Phosphors
Photoluminescence
Physics
Quenching
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Solid state
Synthesis
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Summary:A novel red SrMoO4:Sm3+,R+ (R+aa=aaLi+, Na+, K+) phosphor was prepared by solid state reaction method. XRD results showed that 950aaA degree C was a suitable sintered temperature for preparation of SrMoO4:Sm3+ phosphors. The emission spectra of the SrMoO4:Sm3+ phosphors consisted of some sharp emission peaks of Sm3+ ions centred at 562aanm, 601aanm, 646aanm, 703aanm, generating bright orange-red light. Luminescence concentration quenching could be observed when the doping concentration of Sm3+ ions was more than 2aamol%. The introduction of charge compensator R+ (R+aa=aaLi+, Na+, K+) into the host efficiently enhanced the luminescence intensity of the SrMoO4:Sm3+ phosphors. The CIE chromaticity coordinates of the Sr0.96MoO4:0.02Sm3+,0.02Na+ phosphors was quite close to that of commercial red Sr2Si5N8:Eu2+ phosphors. These SrMoO4:Sm3+,R+ (R+aa=aaLi+, Na+, K+) phosphors may be potentially used as red phosphors for white light-emitting diodes. Display Omitted
ISSN:1293-2558
1873-3085
DOI:10.1016/j.solidstatesciences.2010.12.029