Luminescence properties of Ce3+-doped oxyfluoride aluminosilicate glass and glass ceramics

Du, Ying; Han, Shuai; Ya, Zou; Yuan, Jun; Shao, Chongyun; Jiang, Xinyi; Chen, Danping

doi:10.1016/j.optmat.2019.01.018

Cited by 30 publications

(7 citation statements)

References 32 publications

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“…Because the theoretical mass ratios of metal fluorides in PG and GC650 samples are as high as 72.2%, the densities of PG and GC650 samples are about 4.59 and 4.65 g/cm 3 (as listed in Table ). The glass density increases after heat treatment, indicating that the glass structure becomes more compact after crystallization …”

Section: Resultsmentioning

confidence: 99%

“…The glass density increases after heat treatment, indicating that the glass structure becomes more compact after crystallization. 35 Figure 2 exhibits the UV-VIS transmission spectra of PG and GC650 samples. The apparent absorption peaks at 350, 369, 377, and 485 nm are assigned to the transitions from 7 F 6 ground state to the higher 5 L 9 , 5 D 2 , 5 D 3 , and 5 D 4 excited states of Tb 3+ , respectively.…”

Section: Analyses Of Structuresmentioning

confidence: 99%

See 1 more Smart Citation

Tb³⁺‐doped transparent BaGdF₅ glass‐ceramics scintillator for X‐ray detector

Zheng

Wei

et al. 2019

J Am Ceram Soc

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Commercial Bi4Ge3O12 (BGO) monocrystal scintillator is relatively complicated to produce and too expensive. Therefore, it is desired to look for alternative scintillating materials with simple process, low consumption, large size, and high efficiency. Here, glass‐ceramics (GC) with high volume fraction of crystal phase and high density by increasing the proportion of heavy metal fluorides in the composition were designed. And bulk Tb3+‐doped transparent BaGdF5 glass‐ceramics with 23.3% crystal volume ratio and density of 4.65 g/cm3 have been prepared. The structural, optical, and luminescent properties of precursor glass and GC were systematically explored through series of characterization techniques including X‐ray diffraction (XRD), transmittance spectra, transmission electron microscope (TEM), photoluminescence (PL) spectra, and X‐ray excited luminescence (XEL). After heat treatment, both PL emission and XEL intensity of GC are enhanced because of the movement of Tb3+ ions from the amorphous glass matrix into BaGdF5 nanocrystals, which possess lower phonon energy and better crystal field. The luminescent quantum efficiency of GC reaches 30.7% and the XEL intensity of GC is around 140% of that of the commercial BGO scintillating crystal. Our results demonstrate that BaGdF5:Tb3+ GC may act as efficient scintillator for X‐ray detection.

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Section: Resultsmentioning

confidence: 99%

Section: Analyses Of Structuresmentioning

confidence: 99%

Tb³⁺‐doped transparent BaGdF₅ glass‐ceramics scintillator for X‐ray detector

Zheng

Wei

et al. 2019

J Am Ceram Soc

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“…Among fluorides, special attention should be paid to YF 3 and LaF 3 crystal phases characterized by wide band gap (>10 eV) and exceptionally low-phonon energies equal to~358 as well as~350 cm −1 , respectively, in which M 3+ (M = Y, La) cations from crystal lattices can be easily substituted by RE 3+ ions without any charge compensation [20][21][22][23]. Due to the above reasons, the oxyfluoride glass-ceramic materials (GCs) containing fluoride nanocrystals are considered as an interesting class of advanced optical materials, which are frequently reported in the literature [24][25][26][27][28]. Indeed, they successfully combine the advantages of the individual fluoride crystal phase with good mechanical strength and thermal durability of oxide hosts [29,30].…”

Section: Introductionmentioning

confidence: 99%

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

2020

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In the present work, the Tb3+/Eu3+ co-activated sol-gel glass-ceramic materials (GCs) containing MF3 (M = Y, La) nanocrystals were fabricated during controlled heat-treatment of silicate xerogels at 350 °C. The studies of Tb3+ → Eu3+ energy transfer process (ET) were performed by excitation and emission spectra along with luminescence decay analysis. The co-activated xerogels and GCs exhibit multicolor emission originated from 4fn–4fn optical transitions of Tb3+ (5D4 → 7FJ, J = 6–3) as well as Eu3+ ions (5D0 → 7FJ, J = 0–4). Based on recorded decay curves, it was found that there is a significant prolongation in luminescence lifetimes of the 5D4 (Tb3+) and the 5D0 (Eu3+) levels after the controlled heat-treatment of xerogels. Moreover, for both types of prepared GCs, an increase in ET efficiency was also observed (from ηET ≈ 16% for xerogels up to ηET = 37.3% for SiO2-YF3 GCs and ηET = 60.8% for SiO2-LaF3 GCs). The changes in photoluminescence behavior of rare-earth (RE3+) dopants clearly evidenced their partial segregation inside low-phonon energy fluoride environment. The obtained results suggest that prepared SiO2-MF3:Tb3+, Eu3+ GC materials could be considered for use as optical elements in RGB-lighting optoelectronic devices operating under near-ultraviolet (NUV) excitation.

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“…In recent years, Ce-doped oxyhalide and halide glasses have attracted much attention because of advantages including a low synthesis temperature and a low phonon energy compared with oxide glasses. (48)(49)(50)(51)(52) In addition, Ce-doped oxyhalide glasses show high LYs compared with those reported for glass scintillators; for example, the LYs reported for Ce-doped BaF 2 -Al 2 O 3 -B 2 O 3 , (53) CsCl-Al(PO 3 ) 3 -CsPO 3 , (54) and CsBr-Al(PO 3 ) 3 -CsPO 3 (55) were 1800, 2100, and 2700 photons/MeV, respectively. In the case of halide glasses, Ce-doped ZnCl 2 -based glasses such as CsCl-CaCl 2 -ZnCl 2 (56) and CsCl-BaCl 2 -ZnCl 2 (57) showed high quantum yields (QY) of ~87.6 and ~75.7, respectively.…”

Section: Introductionmentioning

confidence: 92%

Radiation-induced Luminescence Properties of Ce-doped ZnBr2-based Glasses

Kimura¹,

Fujiwara²,

Tanaka³

et al. 2023

Sensors and Materials

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Ce-doped 20CsBr-20BaBr 2 -60ZnBr 2 glasses were synthesized by the conventional melt quenching method, and their photoluminescence (PL) and scintillation properties were investigated. In the PL and scintillation spectra, all the Ce-doped glasses showed broad emissions due to the 5d-4f transitions of Ce 3+ ions. Under 241 Am α-rays, the light yield of 0.05% Ce-doped glass was 40 photons/5.5 MeV-α.

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Luminescence properties of Ce3+-doped oxyfluoride aluminosilicate glass and glass ceramics

Cited by 30 publications

References 32 publications

Tb³⁺‐doped transparent BaGdF₅ glass‐ceramics scintillator for X‐ray detector

Tb³⁺‐doped transparent BaGdF₅ glass‐ceramics scintillator for X‐ray detector

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

Radiation-induced Luminescence Properties of Ce-doped ZnBr2-based Glasses

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Luminescence properties of Ce3+-doped oxyfluoride aluminosilicate glass and glass ceramics

Cited by 30 publications

References 32 publications

Tb3+‐doped transparent BaGdF5 glass‐ceramics scintillator for X‐ray detector

Tb3+‐doped transparent BaGdF5 glass‐ceramics scintillator for X‐ray detector

Energy Transfer Study on Tb3+/Eu3+ Co-Activated Sol-Gel Glass-Ceramic Materials Containing MF3 (M = Y, La) Nanocrystals for NUV Optoelectronic Devices

Radiation-induced Luminescence Properties of Ce-doped ZnBr2-based Glasses

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Tb³⁺‐doped transparent BaGdF₅ glass‐ceramics scintillator for X‐ray detector

Tb³⁺‐doped transparent BaGdF₅ glass‐ceramics scintillator for X‐ray detector