Magnetic properties and energy transfer in the luminophors CaS:Eu,Cl

Klimonskii, S. O.; Primenko, A. É.; Kuznetsov, V. D.; Danilkin, M. I.; Seman, V.

doi:10.1134/1.558563

Cited by 1 publication

(1 citation statement)

References 4 publications

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“…These kinds of defects with deep trap depth are possibly responsible for the PSL in CaS:Eu 2+ ,Cl. Magnetic properties in CaS:Eu,Cl were also reported [38]. Complexes consisting of Eu 2+ at the Ca site, Ca vacancy and Cl − at the S site were suggested to be formed.…”

Section: Psl In Cas:eu 2+mentioning

confidence: 90%

Photostimulated luminescence excited by infrared LEDs in CaS:Eu²⁺ red afterglow phosphors

Yamaguchi¹,

Suda²,

Nanai³

et al. 2022

J. Phys. D: Appl. Phys.

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Red photostimulated luminescence at 650 nm appears under the excitation by using an infrared light-emitting diode at 940 nm in CaS:Eu2+ afterglow phosphors. The effect of doping of Dy3+ ions, alkali metal ions or Cl- ions in CaS:Eu2+ on afterglow or photostimulation is investigated. Afterglow temporal decays and thermoluminescence glow curves suggest that Dy3+ ions and alkali metal ions induce different types of defects in the phosphor, and enhance the afterglow independently. Doping of Cl- ions is found to enhance the photostimulation by the infrared excitation. Even if the phosphor is irradiated with infrared light for some seconds, the afterglow decay curve is the same as when it is not irradiated with infrared light. Trap states responsible for the photostimulation are different from those responsible for the afterglow. The red photostimulation appears under the excitation at 940 nm, after the phosphor is left in the dark for 60 minutes. Its intensity is 68% of the red photostimulated luminescence generated after being left in the dark for 10 minutes. It is considered that the PSL decreases little, when the sample is kept in the dark.

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Section: Psl In Cas:eu 2+mentioning

confidence: 90%

Photostimulated luminescence excited by infrared LEDs in CaS:Eu²⁺ red afterglow phosphors

Yamaguchi¹,

Suda²,

Nanai³

et al. 2022

J. Phys. D: Appl. Phys.

View full text Add to dashboard Cite

show abstract

Magnetic properties and energy transfer in the luminophors CaS:Eu,Cl

Cited by 1 publication

References 4 publications

Photostimulated luminescence excited by infrared LEDs in CaS:Eu²⁺ red afterglow phosphors

Photostimulated luminescence excited by infrared LEDs in CaS:Eu²⁺ red afterglow phosphors

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Magnetic properties and energy transfer in the luminophors CaS:Eu,Cl

Cited by 1 publication

References 4 publications

Photostimulated luminescence excited by infrared LEDs in CaS:Eu2+ red afterglow phosphors

Photostimulated luminescence excited by infrared LEDs in CaS:Eu2+ red afterglow phosphors

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Photostimulated luminescence excited by infrared LEDs in CaS:Eu²⁺ red afterglow phosphors

Photostimulated luminescence excited by infrared LEDs in CaS:Eu²⁺ red afterglow phosphors