Synthesis, energy transfer and luminescence properties of KSrVO^sub 4^:Eu^sup 3+^ red phosphor

Synthesis, energy transfer and luminescence properties of KSrVO^sub 4^:Eu^sup 3+^ red phosphor

KSrVO4:Eu3+ phosphors are synthesized by solid-state reaction method in air. Host KSrVO4 under excitation at 345 nm emits green-yellow light with the CIE chromaticity coordinates (0.3466, 0.4425), and its broad emission band peaking at ~545 nm covers the range 400-750 nm due to 3T1,2 [arrow right] 1...

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Veröffentlicht in:Journal of materials science. Materials in electronics 2016-08, Vol.27 (8), p.8094
Hauptverfasser: Cao, Renping, Peng, Dedong, Fu, Ting, Luo, Zhiyang, Zhou, Shenlin, Jiang, Shenhua, Fu, Jingwei
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container_title Journal of materials science. Materials in electronics
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creator Cao, Renping
Peng, Dedong
Fu, Ting
Luo, Zhiyang
Zhou, Shenlin
Jiang, Shenhua
Fu, Jingwei
description KSrVO4:Eu3+ phosphors are synthesized by solid-state reaction method in air. Host KSrVO4 under excitation at 345 nm emits green-yellow light with the CIE chromaticity coordinates (0.3466, 0.4425), and its broad emission band peaking at ~545 nm covers the range 400-750 nm due to 3T1,2 [arrow right] 1A1 transitions in [VO4]3- group. KSrVO4:Eu3+ phosphor under excitation at 315 and 394 nm shows red emission with the CIE chromaticity coordinates (0.6279, 0.3717), and the emission spectra in the range of 560-750 nm contains four narrow emission bands owing to 5D0 [arrow right] 7FJ (J = 1, 2, 3, and 4) transitions of Eu3+ ion, respectively. The optimal Eu3+ doping concentration is ~4 mol%. The lifetime decreases from 0.991 to 0.893 ms with increasing Eu3+ concentration within the range 0.5-6 mol%. The possible luminous mechanism is analyzed by the simplified energy level diagrams of VO4 3- group and Eu3+ ion, and energy transfer process in KSrVO4:Eu3+ phosphor. The experimental results indicate that KSrVO4:Eu3+ phosphor will be possible to be used as red phosphor candidate for white light-emitting diode (LED) based on ultraviolet (~315 nm) and near ultraviolet (~395 nm) LED chips.
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Host KSrVO4 under excitation at 345 nm emits green-yellow light with the CIE chromaticity coordinates (0.3466, 0.4425), and its broad emission band peaking at ~545 nm covers the range 400-750 nm due to 3T1,2 [arrow right] 1A1 transitions in [VO4]3- group. KSrVO4:Eu3+ phosphor under excitation at 315 and 394 nm shows red emission with the CIE chromaticity coordinates (0.6279, 0.3717), and the emission spectra in the range of 560-750 nm contains four narrow emission bands owing to 5D0 [arrow right] 7FJ (J = 1, 2, 3, and 4) transitions of Eu3+ ion, respectively. The optimal Eu3+ doping concentration is ~4 mol%. The lifetime decreases from 0.991 to 0.893 ms with increasing Eu3+ concentration within the range 0.5-6 mol%. The possible luminous mechanism is analyzed by the simplified energy level diagrams of VO4 3- group and Eu3+ ion, and energy transfer process in KSrVO4:Eu3+ phosphor. 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Materials in electronics</title><description>KSrVO4:Eu3+ phosphors are synthesized by solid-state reaction method in air. Host KSrVO4 under excitation at 345 nm emits green-yellow light with the CIE chromaticity coordinates (0.3466, 0.4425), and its broad emission band peaking at ~545 nm covers the range 400-750 nm due to 3T1,2 [arrow right] 1A1 transitions in [VO4]3- group. KSrVO4:Eu3+ phosphor under excitation at 315 and 394 nm shows red emission with the CIE chromaticity coordinates (0.6279, 0.3717), and the emission spectra in the range of 560-750 nm contains four narrow emission bands owing to 5D0 [arrow right] 7FJ (J = 1, 2, 3, and 4) transitions of Eu3+ ion, respectively. The optimal Eu3+ doping concentration is ~4 mol%. The lifetime decreases from 0.991 to 0.893 ms with increasing Eu3+ concentration within the range 0.5-6 mol%. The possible luminous mechanism is analyzed by the simplified energy level diagrams of VO4 3- group and Eu3+ ion, and energy transfer process in KSrVO4:Eu3+ phosphor. 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Materials in electronics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cao, Renping</au><au>Peng, Dedong</au><au>Fu, Ting</au><au>Luo, Zhiyang</au><au>Zhou, Shenlin</au><au>Jiang, Shenhua</au><au>Fu, Jingwei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis, energy transfer and luminescence properties of KSrVO^sub 4^:Eu^sup 3+^ red phosphor</atitle><jtitle>Journal of materials science. Materials in electronics</jtitle><date>2016-08-01</date><risdate>2016</risdate><volume>27</volume><issue>8</issue><spage>8094</spage><pages>8094-</pages><issn>0957-4522</issn><eissn>1573-482X</eissn><abstract>KSrVO4:Eu3+ phosphors are synthesized by solid-state reaction method in air. 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The experimental results indicate that KSrVO4:Eu3+ phosphor will be possible to be used as red phosphor candidate for white light-emitting diode (LED) based on ultraviolet (~315 nm) and near ultraviolet (~395 nm) LED chips.</abstract><cop>New York</cop><pub>Springer Nature B.V</pub><doi>10.1007/s10854-016-4809-6</doi></addata></record>
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title Synthesis, energy transfer and luminescence properties of KSrVO^sub 4^:Eu^sup 3+^ red phosphor
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