Synthesis and luminescence of A3Bi(PO4)3:Eu2+ (A = Ba and Sr) powders

Wei, Fengjun; Jia, Qiuli

doi:10.1007/s10854-014-2393-1

Cited by 8 publications

(3 citation statements)

References 19 publications

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“…This could be affected by the change of the crystal field in Eu 2+ . Previous researches have reported that 5d energy level could be split into sublevels, resulting in broad band emission [8][9]. The spectra were similar to those of phosphor powder (Fig.…”

Section: Methodssupporting

confidence: 61%

The Preparation of Luminescent Phosphor in SiO2-B2O3-ZnO-K2O Glasses

Loryuenyong

Ruangsiri

Paldee

et al. 2022

KEM

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This research studied the preparation of luminescent glasses using 18SiO2-35B2O3-22ZnO-20K2O glass frits. The glass frits were first mixed with 15 wt.% of commercial SrAl2O4:Eu2+,Dy3+ phosphors and different B2O3 concentrations of 0-15 wt.%. The raw materials were then melted at 750-800°C for 1 hr. The results showed that the addition of B2O3 as a flux induced the crystallization of α-Zn2SiO4 phase and suppressed the luminescent properties of phosphor-in-glasses. This could be due to the dissociation of SrAl2O4 by the reaction of SrAl2O4 and B2O3. The higher sintering temperature at 800°C also further degraded the luminescent properties as a result of further phosphor degradation and the oxidation of Eu2+.

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Section: Methodssupporting

confidence: 61%

The Preparation of Luminescent Phosphor in SiO2-B2O3-ZnO-K2O Glasses

Loryuenyong

Ruangsiri

Paldee

et al. 2022

KEM

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“…A 1 exp(-t/s 1 ) ? A 2 exp(-t/s 2 ), where I is the photoluminescence intensity, I 0 , A 1 , A 2 are the constants, t is the time, s 1 and s 2 are the decay constants for exponential components [24]. The decay lifetimes (s) can be calculated as s = (A 1 s 1 2 ?…”

Section: Resultsmentioning

confidence: 99%

Fabrication of SrAl2O4:Eu2+ films on Si substrates via metal–organic solution

Yang

Liu

Zhang

et al. 2015

J Mater Sci: Mater Electron

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SrAl 2 O 4 :Eu 2? films were fabricated on the Si substrates by metal-organic solution deposition method and subsequent treatment up to 1100°C. The phase and microstructure of the obtained films were characterized by DTA-TG, XRD, SEM and AFM. The composition of the film was confirmed by XPS. The luminescence properties of the films were measured by spectrophotometer. The effect of annealing temperature on the structure and luminescence was studied. It showed that the films had the pure monoclinic phase and the depth about 2 lm. Under the excitation of 254 nm, SrAl 2 O 4 :Eu 2? films exhibited an intense green emission band peaking at 528 nm, which originates from the 4f-5d transition of the Eu 2? ions. The quenching temperature of the emission is about 400 K. The results indicated that the SrAl 2 O 4 :Eu 2? films have good potential for use as a green phosphor for displays and/or white light emitting diodes.

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“…Eu 2? ion has a 4f 7 electron configuration, and its emission has close relation with the crystal field strength [12]. Generally, the energy of the excited state 4f 6 5d 1 of the Eu 2?…”

Section: Introductionmentioning

confidence: 99%

Synthesis of Sr4Al2O7:Eu2+/Dy3+ phosphors by the solid-state reaction and luminescent properties

Liu

Chen

Meng

et al. 2015

J Mater Sci: Mater Electron

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Sr 4 Al 2 O 7 :Eu 2? /Dy 3? phosphors are synthesized by the solid-state reaction. The obtained powders are characterized by XRD, SEM and luminescent spectrometer. The effects of the mole ratios of Dy 3? /Eu 2? on luminescent properties of Sr 4 Al 2 O 7 :Eu 2? /Dy 3? phosphors are investigated. The XRD pattern indicates that the powders have pure Sr 4 Al 2 O 7 phase. The SEM micrographs reveal that Sr 4 Al 2 O 7 :Eu 2? /Dy 3? phosphors show similar irregular morphology. Under the excitation of 360 nm, Sr 4 Al 2 O 7 :Eu 2? /Dy 3? phosphors exhibit the characteristic emission band originating from the 4f 6 5d 1 ? 4f 7 transition of Eu 2? ions. The emission intensity increases with the increasing mole ratio of Dy 3? /Eu 2? up to 3 and then decreases. Thermalluminescence results indicate that the persistent afterglow of Sr 4 Al 2 O 7 :Eu 2? /Dy 3? phosphors is generated by suitable electron traps formed by the Dy 3? ions within the host.

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Synthesis and luminescence of A3Bi(PO4)3:Eu2+ (A = Ba and Sr) powders

Cited by 8 publications

References 19 publications

The Preparation of Luminescent Phosphor in SiO<sub>2</sub>-B<sub>2</sub>O<sub>3</sub>-ZnO-K<sub>2</sub>O Glasses

The Preparation of Luminescent Phosphor in SiO<sub>2</sub>-B<sub>2</sub>O<sub>3</sub>-ZnO-K<sub>2</sub>O Glasses

Fabrication of SrAl2O4:Eu2+ films on Si substrates via metal–organic solution

Synthesis of Sr4Al2O7:Eu2+/Dy3+ phosphors by the solid-state reaction and luminescent properties

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