Luminescence, energy transfer properties of Tb/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses

Sun, Xin‐Yuan; Yang, Qing; Gao, Pan; Wu, Huadong; Xie, Peng

doi:10.1016/j.jlumin.2015.04.021

Cited by 48 publications

(8 citation statements)

References 23 publications

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“…Therefore, they are suitable hosts for luminescent REI and are considered to be promising optical materials with extensive applications. White light emission has been achieved in Ce 3+ /Dy 3+ , Eu 3+ /Tb 3+ /Dy 3+ , and Tm 3+ /Tb 3+ /Eu 3+ REI-codoped oxyfluoride glasses under near-ultraviolet light excitation, showing potential applications in red–green–blue (RGB) combination white light generation. − The temperature-dependent upconversion fluorescences have been observed in Er 3+ (Er 3+ /Yb 3+ )-doped oxyfluoride glasses, making such materials to be potential candidates for temperature sensing. , The integral scintillation efficiencies of Tb 3+ ions in oxyfluoride borogermanate and oxyfluoride silicate glasses were found to be about 26.9 and 68.0%, respectively, of the standard Bi 4 Ge 3 O 12 (BGO) scintillating crystal, showing prospective applications in high-resolution X-ray imaging. , Moreover, the REI-doped oxyfluoride glasses can be processed under appropriate heat treatment into glass ceramics containing various fluoride crystals, such as MF 2 (M = Pb, Cd, Ca, Ba), − NF 3 (N = La, Y), − and AREF n (A = K, Na, Ba; RE = Y, Yb, La, Lu, Gd). − These materials can be used in optical amplifiers, upconversion devices, solid-state lasers, optical thermometry, etc. ,− The local structures of glasses have a significant effect on the luminescence properties of REI. Although considerable luminescence performances have been reported for these materials, the fundamental local structure information is rarely reported.…”

Section: Introductionmentioning

confidence: 99%

Structural Studies of Rare Earth-Doped Fluoroborosilicate Glasses by Advanced Solid-State NMR

Zhang

Ren

2020

J. Phys. Chem. C

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The detailed local structures of fluoroborosilicate glasses with the compositions of (50 + x)SiO2–(20 – x)B2O3–10Na2O–10NaF–10YF3 (x = 0, 5, 10, 15 mol %) were investigated by advanced one- and two-dimensional solid-state nuclear magnetic resonance (SSNMR) techniques. The borosilicate glass network is characterized by 29Si and 11B magic angle spinning NMR (MAS NMR) spectra. 29Si MAS spectra show that the silicate network strengthens with the decrease of the B2O3 content. Two three-coordination boron species (B(3)-ring, B(3)-nonring) and two four-coordination boron species (BO4, BO3F) are observed in the 11B MAS spectra. The two types of B(4) species are identified by 11B triple-quantum magic angle spinning (TQMAS) and J-coupling-based 11B{19F} heteronuclear multiple quantum coherence (J-HMQC) methods. The F– species are confirmed by 19F MAS spectra and a 19F{23Na} rotational echo double resonance (REDOR) method, revealing the existence of Na–F–B and multiple Na–F–Y linkages. The clustering of F– ions is proved by 19F static spin echo results, which indicate that B3+ ions have a dispersive effect on F– ions. 11B/23Na REDOR results show that the distribution of Na+ around B(3) and B(4) is similar, and independent of the content of B2O3. On the basis of these results, a quantitative atomic structure evolution with glass compositions is investigated.

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Section: Introductionmentioning

confidence: 99%

Structural Studies of Rare Earth-Doped Fluoroborosilicate Glasses by Advanced Solid-State NMR

Zhang

Ren

2020

J. Phys. Chem. C

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“…Thus, the mean lifetimes of all the nonexponential curves are finally evaluated by a sum of two exponential functions. 13 As summarized in Table I, the mean lifetimes are about 26.20, 26.80, 25.27, 25.70, 25.82, and 24.93 ns in Ce 3+ -activated borogermanate glasses with an increase in the substitution ratios, respectively. They are very close to that of the fluorohafnate glass, which suggest that the presented borogermanate glass is one of the most competitive scintillating materials.…”

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confidence: 93%

Optical Investigation of Ce³⁺‐Activated Borogermanate Glass Induced by Substitution of BaF₂ for BaO

et al. 2015

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Transparent and colorless CeO2‐activated borogermanate glasses, with the nominal molar composition of 25B2O3–40GeO2–14Gd2O3–1CeO2–(20−x) BaO–xBaF2 (x = 0, 2.5, 5, 10, 15 and 20), were synthesized by a melt‐quenching method in air. Their optical investigation on the transmittance, photoluminescence (excitation and emission spectra), the luminescence decay curves, as well as the temperature‐dependent Ce3+ emission are studied systematically with the gradual substitution of BaF2 for BaO. The room‐temperature photoluminescence results reveal that the emission intensity can be improved by about 2.5 times with the full substitution of BaF2 for BaO. The blue shift of the cut‐off edge, excitation and emission spectra of Ce3+‐activated borogermanate glass, and the emission intensity of Ce3+ ions as a function of temperature range in 80–500 K are also discussed.

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“…As a result, their integrated XEL intensity increased from 9.1% to 192% of that of BGO, as shown in Table 1. 22–24,27–33…”

Section: Introductionmentioning

confidence: 99%

Highly resolved and refreshable X-ray imaging from Tb³⁺doped aluminosilicate oxyfluoride glass scintillators

Guo

Chen

et al. 2023

J. Mater. Chem. C

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Luminescence, energy transfer properties of Tb/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses

Cited by 48 publications

References 23 publications

Structural Studies of Rare Earth-Doped Fluoroborosilicate Glasses by Advanced Solid-State NMR

Structural Studies of Rare Earth-Doped Fluoroborosilicate Glasses by Advanced Solid-State NMR

Optical Investigation of Ce³⁺‐Activated Borogermanate Glass Induced by Substitution of BaF₂ for BaO

Highly resolved and refreshable X-ray imaging from Tb³⁺doped aluminosilicate oxyfluoride glass scintillators

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Luminescence, energy transfer properties of Tb/Gd3+-coactivated oxyfluoride borogermanate scintillating glasses

Cited by 48 publications

References 23 publications

Structural Studies of Rare Earth-Doped Fluoroborosilicate Glasses by Advanced Solid-State NMR

Structural Studies of Rare Earth-Doped Fluoroborosilicate Glasses by Advanced Solid-State NMR

Optical Investigation of Ce3+‐Activated Borogermanate Glass Induced by Substitution of BaF2 for BaO

Highly resolved and refreshable X-ray imaging from Tb3+doped aluminosilicate oxyfluoride glass scintillators

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Product

Resources

About

Optical Investigation of Ce³⁺‐Activated Borogermanate Glass Induced by Substitution of BaF₂ for BaO

Highly resolved and refreshable X-ray imaging from Tb³⁺doped aluminosilicate oxyfluoride glass scintillators