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Luminescence of Eu^2+ and Eu^2+-Mn^2+ in sodium scandium diphosphate NaScP2O7 crystal

Luminescence of Eu^(2+) and Eu^(2+)-Mn^(2+) in sodium scandium diphosphate NaScP_2O_7 crystal
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摘要 In this work, the photoluminescence(PL) of NaScP2O7:Eu^2+ and NaScP2O7:Eu^2+,Mn^2+ was investigated. Phase purity was checked using X-ray powder diffractometry(XRD). PL excitation and emission spectra were recorded to elucidate the PL properties of NaScP2O7:Eu^2+ and NaScP2O7:Eu^2+,Mn^2+. Furthermore, fluorescence lifetime measurements were performed. PL and lifetime measurements were carried out from 10 to 525 K. Moreover, the Eu^2+ site occupation was discussed. It turned out that the incorporated Eu^2+ ions substituted for Na+ site and occupied two different sites. Temperature dependent PL measurements indicated the emission intensity decreased with increasing temperature due to temperature quenching in NaScP2O7:Eu^2+. Fluorescence lifetimes of Eu^2+ in NaScP2O7:Eu^2+ almost did not change with a decay constant τ=~0.53 μs in the temperature range of 10–280 K, and then shortened due to temperature quenching. The luminescent lifetime reached ~0.05 μs at T=525 K. Finally, it was found that energy transfer occurred from Eu^2+ to Mn^2+ in co-doped NaScP2O7:Eu^2+,Mn^2+. In this work, the photoluminescence(PL) of NaScP2O7:Eu^2+ and NaScP2O7:Eu^2+,Mn^2+ was investigated. Phase purity was checked using X-ray powder diffractometry(XRD). PL excitation and emission spectra were recorded to elucidate the PL properties of NaScP2O7:Eu^2+ and NaScP2O7:Eu^2+,Mn^2+. Furthermore, fluorescence lifetime measurements were performed. PL and lifetime measurements were carried out from 10 to 525 K. Moreover, the Eu^2+ site occupation was discussed. It turned out that the incorporated Eu^2+ ions substituted for Na+ site and occupied two different sites. Temperature dependent PL measurements indicated the emission intensity decreased with increasing temperature due to temperature quenching in NaScP2O7:Eu^2+. Fluorescence lifetimes of Eu^2+ in NaScP2O7:Eu^2+ almost did not change with a decay constant τ=~0.53 μs in the temperature range of 10–280 K, and then shortened due to temperature quenching. The luminescent lifetime reached ~0.05 μs at T=525 K. Finally, it was found that energy transfer occurred from Eu^2+ to Mn^2+ in co-doped NaScP2O7:Eu^2+,Mn^2+.
出处 《Journal of Rare Earths》 SCIE EI CAS CSCD 2017年第5期453-459,共7页 稀土学报(英文版)
基金 Project supported by the Science and Technology Program of Hunan Province(2010FJ3092)
关键词 lifetime diffractometry luminescent diphosphate checked excitation incorporated decay elucidate luminescence lifetime diffractometry luminescent diphosphate checked excitation incorporated decay elucidate luminescence
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  • 1Pan Z W, Lu Y Y, Liu F. Sunlight-activated long-persis- tent luminescence in the near-infrared from Cr3~-doped zinc gallogennanates. Nat. Mater., 2012, 11(1): 58.
  • 2Clabau F, Rocquefelte X, Jobic S, Deniard P, Whangbo M-H, Garcia A, Mercier T Le. Mechanism of phosphores- cence appropriate for the long-lasting phosphors Eu2+-doped SrA1204 with codopants Dy3+ and B3+. Chem. Ma- ter., 2005, 17(15): 3904.
  • 3Abbruscato V. Optical and electrical properties of SrA1204: Eu2+ solid state science-technical papers. J. Electrochem. Soc., 1971, 118(6): 930.
  • 4Yamamoto H, Matsuzawa T. Mechanism of long phospho- rescence of SrAlzO4:Eu2+,Dy3+ and CaA1204:Eu2+,Nd3+. J. Lumin., 1997, 72-74: 287.
  • 5Lin Y H, Tang Z L, Zhang Z T, Nan C W. Luminescence of Eu2+ and Dy3+ activated R3MgSi2Os-based (R=Ca, Sr, Ba) phosphors. J. Alloys Compd., 2003, 348: 76.
  • 6Kravets V G. Using electron trapping materials for optical memory. Opt. Mater. (Amsterdam, Neth.), 2001, 16(3): 369. w.
  • 7Kodama N, Takahashi T, Yamaga M, Tanii Y, Qiu J, Hirao K. Long-lasting phosphorescence in Ce3+-doped CazA12SiOv and CaYA1307 and crystals. Appl. Phys. Lett., 1999, 75(12): 1715.
  • 8H6ppe H A, Lutz H, Morys P, Schnick W, Seilmeier A. Luminescence in EuZ+-doped Ba2SisN8: Fluorescence, thermoluminescence, and upconversion. J. Phys. Chem. Solids, 2000, 61(12): 2001.
  • 9Kowatari M, Koyama D, Satoh Y, Iinuma K, Uchida S. The temperature dependence of luminescence from a long-lasting phosphor exposed to ionizing radiation. Nucl. Instrum. Methods Phys. Res. Sect. A, 2002, 480(2-3): 431.
  • 10Yu F, Yang Y M, Su X Y, Mi C, Seo H J. Novel long per- sistent luminescence phosphors: Yb2+ codoped MAI204 (M=Ba, Sr). Opt. Mater. Express, 2015, 5(3): 585.

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