Effect of composition on the luminescent properties of Sr4Al14O25: Eu2+, Dy3+ phosphors

Yuan, Zhao‐Xin; Chang, Chengkang; Mao, Dali; Ying, Weijiang

doi:10.1016/j.jallcom.2004.01.063

Cited by 130 publications

(57 citation statements)

References 10 publications

(14 reference statements)

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“…So, the trap depth calculated by different methods proposed by several authors [25]. Trap depth for second order kinetics is calculated using the Eq.…”

Section: Activation Energy (E)mentioning

confidence: 99%

Enhanced luminescence performance of Sr2MgSi2O7:Eu2+ blue long persistence phosphor by co-doping with Ce3+ ions

Sahu

Bisen

Brahme

et al. 2015

J Mater Sci: Mater Electron

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A series of rare earth doped and co-doped distrontium magnesium di-silicate phosphors namely: Sr 2 MgSi 2 O 7 :Ce 3? , Sr 2 MgSi 2 O 7 :Eu 2? and Sr 2 MgSi 2 O 7 :Eu 2? , Ce 3? were prepared by the solid state reaction method. The crystal structures of sintered phosphors were an akermanite type structure which belongs to the tetragonal crystallography. The chemical compositions of sintered phosphors were confirmed by energy dispersive X-ray spectroscopy (EDS). Under the ultraviolet excitation, the emission spectra of both Sr 2 MgSi 2 O 7 :Eu 2? and Sr 2 MgSi 2 O 7 :Eu 2? , Ce 3? phosphors were composed of a broad band peaking at 460 nm, belonging to the broad emission band. When the Sr 2 MgSi 2 O 7 :Eu 2? phosphor is co-doped with Ce 3? ions, thermouminescence, photoluminescence, afterglow and mechanoluminescence (ML) intensity were strongly enhanced. The Sr 2 MgSi 2 O 7 :Eu 2? phosphor showed some afterglow with short persistence time. Ce 3? phosphors were proportionally increased with the increase of impact velocity, which suggests that these phosphors can be used as sensors to detect the stress of an object. Thus the present investigation indicates that the piezoelectricity is responsible to produce ML in prepared phosphors.

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“…So, the trap depth calculated by different methods proposed by several authors [25]. Trap depth for second order kinetics is calculated using the Eq.…”

Section: Activation Energy (E)mentioning

confidence: 99%

Enhanced luminescence performance of Sr2MgSi2O7:Eu2+ blue long persistence phosphor by co-doping with Ce3+ ions

Sahu

Bisen

Brahme

et al. 2015

J Mater Sci: Mater Electron

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“…In 1983, Van Kemenade and Hoeks reported that Sr4Al14O25:Eu 2+ ,Dy 3+ phosphor had a higher quantum efficiency and better long persistence properties than those of traditional aluminate and sulphide phosphors. There are some articles based on the long afterglow of Sr4Al14O25:Eu 2+ ,Dy 3+ phosphor [7][8][9][10]. However, there is no report in the literature on the existence and the luminescence properties of Ba4Al14O25: Eu 2+ ,Dy 3+ compound.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and luminescence properties of long afterglow Phosphor Ba4Al14O25:Eu,Dy

2010

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“…For the improvement of phosphorescence, many researches have been focused on regarding additives, molar ratio of constituents, and the preparation methods [6][7][8]. It was found that the shape and size of phosphor particles play important role for the phosphorescence properties.…”

Section: Introductionmentioning

confidence: 99%

Effects of Particle Size and Type of Alumina on the Morphology and Photoluminescence Properties of Sr₄Al₁₄O₂₅:Eu²⁺/Dy³⁺ Phosphor

Luitel

Watari

Torikai

et al. 2009

Advances in Materials Science and Engineering

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2+ /Dy 3+ phosphor with high luminescence intensity and long afterglow duration was synthesized using 1.0 μm (α), 0.1 μm (α), and 0.05 μm (γ) particle sizes of Al 2 O 3 . SEM observation results showed that spike-like thin particles were formed when 0.05 μm γ-Al 2 O 3 was used as raw material. Hexagonal thick particles were observed when 0.1 μm α-Al 2 O 3 was used. But irregular, thin particles were observed while using 1 μm α-Al 2 O 3 . Photoluminescence measurements showed that both the initial intensity and the long persistency were much higher for the phosphor prepared using γ-Al 2 O 3 of 0.05 μm particle size.

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Effect of composition on the luminescent properties of Sr4Al14O25: Eu2+, Dy3+ phosphors

Cited by 130 publications

References 10 publications

Enhanced luminescence performance of Sr2MgSi2O7:Eu2+ blue long persistence phosphor by co-doping with Ce3+ ions

Enhanced luminescence performance of Sr2MgSi2O7:Eu2+ blue long persistence phosphor by co-doping with Ce3+ ions

Synthesis, characterization and luminescence properties of long afterglow Phosphor Ba4Al14O25:Eu,Dy

Effects of Particle Size and Type of Alumina on the Morphology and Photoluminescence Properties of Sr₄Al₁₄O₂₅:Eu²⁺/Dy³⁺ Phosphor

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Effect of composition on the luminescent properties of Sr4Al14O25: Eu2+, Dy3+ phosphors

Cited by 130 publications

References 10 publications

Enhanced luminescence performance of Sr2MgSi2O7:Eu2+ blue long persistence phosphor by co-doping with Ce3+ ions

Enhanced luminescence performance of Sr2MgSi2O7:Eu2+ blue long persistence phosphor by co-doping with Ce3+ ions

Synthesis, characterization and luminescence properties of long afterglow Phosphor Ba4Al14O25:Eu,Dy

Effects of Particle Size and Type of Alumina on the Morphology and Photoluminescence Properties of Sr4Al14O25:Eu2+/Dy3+ Phosphor

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Effects of Particle Size and Type of Alumina on the Morphology and Photoluminescence Properties of Sr₄Al₁₄O₂₅:Eu²⁺/Dy³⁺ Phosphor