Evolution of Yb3+ environment and luminescence properties under ionizing irradiation in aluminoborosilicate glasses

Ollier, Nadège; Pukhkaya, V.; Charpentier, Thibault; Moncorgé, R.; Sen, Sabyasachi

doi:10.1016/j.jnoncrysol.2010.11.041

Cited by 15 publications

(15 citation statements)

References 32 publications

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“…Figure 7 also includes two simulated EPR spectra that consider only the g anisotropy, g-strain and For Yb 3+ doped aluminosilicate glass, a g⊥ value of 3.2 has been reported. 65 On the other hand, our g-tensor values are comparable to those that can be estimated from the spectra published by Deschamps et al for SiO 2 -Al 2 O 3 -P 2 O 5 glass fibers. 66 In those materials large variations in the EDFS lineshapes were observed, suggesting that in these oxide glasses the g-tensor values of the Yb 3+ dopants can show substantial variations depending on their ligand environments.…”

Section: Resultssupporting

confidence: 90%

“…74 Table 5), which also increase proportionally to x. For Eu embedded in pure phosphate matrices one typically observes lifetime values within the range 2.0 ± 0.5 ms, 65,66 whereas for Eu in pure fluoride glass matrices, values of up to 6.8 ms have been reported. 20 Further evidence for a mixed fluoride/phosphate environment comes from the phonon sideband peaks associated with the excitation spectra of the monitored 5 D 0 → 7 F 2 transition: While the most intense excitation line lies at 464 nm, the excitation spectra also present a weak phonon sideband at 441 nm, which can be attributed to the anti-Stokes band reflecting the vibrational wavenumber near 1100 cm -1 which 28 contributes to the multiphonon relaxation.…”

Section: Resultsmentioning

confidence: 95%

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Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

et al. 2015

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A detailed structural investigation of a series of fluoride phosphate laser glasses with nominal composition 25BaF 2 -25SrF 2 -(30-x)Al(PO 3 ) 3 -xAlF 3 -(20-z)YF 3 :zREF 3 with x = 25, 20, 15 and 10, RE = Yb and Eu and 0 ≤ z ≤ 1.0 has been conducted, using Raman, solidstate nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR) spectroscopies. The network structure is dominated by the preferred formation of aluminum-to-phosphorus linkages, which have been quantified by means of 27 Al/ 31 P NMR double resonance techniques. The fluoride ions are found in mixed Al/Y/Ba/Sr environments accommodating the luminescent dopant species as well. The local environments of the rare-earth species have been studied by pulsed EPR spectroscopy of the Yb 3+ spin probe (S = ½), revealing composition dependent echo-detected lineshapes, and strong hyperfine coupling with 19 F nuclei in hyperfine sublevel correlation (HYSCORE) spectra consistent with the formation of Yb 3+ -F bonds. In addition, photoluminescence spectra of Eu 3+ -doped samples reveal that the 7 F 2 -> 5 D 0 / 7 F 1 -> 5 D 0 transition intensity ratio, the normalized phonon sideband intensities in the excitation spectra as well as excited state lifetimes are systematically dependent on fluoride content.Altogether, these results indicate that the rare-earth ions are found in a mixed fluoride/phosphate environment, to which the fluoride ions make the dominant contribution. Nevertheless, even at the highest fluoride levels (x = 25) the data suggest residual rare-earth-phosphate coordination.

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 95%

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

et al. 2015

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“…2 and 3b) is in agreement with previous works [3,[14][15][16]. RE ions can trap hole and electron charges and thus decreasing the number of point defects observed after irradiation.…”

Section: Discussionsupporting

confidence: 91%

“…Moreover, we showed an effect of Yb doping on the point defect relaxation in borosilicate glasses [12]. We also reported that luminescent properties such as Yb 3+ ions in borosilicate glasses can be modified under ionizing irradiation [3].…”

Section: Introductionmentioning

confidence: 60%

Study of formation and sequential relaxation of paramagnetic point defects in electron-irradiated Na-aluminosilicate glasses: Influence of Yb

Pukhkaya

Charpentier

Ollier

2013

Journal of Non-Crystalline Solids

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“…Only a few papers have reported such studies up to now. It has been shown that ionizing radiations (electron, γ rays) can affect Yb 3+ spectroscopic properties in aluminoborosilicate glasses such as the 2 F 5/2 excited state lifetime and the cooperative emission intensity [5]. This was correlated to the formation of hole centers type defect under irradiation, in this case, Non-Bridging Oxygen Hole Centers (NBOHC) [5].…”

Section: Introductionmentioning

confidence: 99%

Impact of rare earth element clusters on the excited state lifetime evolution under irradiation in oxide glasses

Pukhkaya¹,

Goldner²,

Ferrier³

et al. 2015

Opt. Express

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Rare earth doped active glasses and fibers can be exposed to ionizing radiations in space and nuclear applications. In this work, we analyze the evolution of (2)F(5/2) excited state lifetime in Yb(3+) ions in irradiated aluminosilicate glasses by electrons and γ rays. It is found that the variation of lifetimes depends on the Yb(3+) clusters content of the glasses for irradiation doses in the 10(2)- 1.5∙10(9) Gy range. In particular, glasses with high clustering show a smaller decrease in lifetime with increasing radiation dose. This behavior is well correlated to the variation in paramagnetic defects concentration determined by electron paramagnetic resonance. This effect is also observed in Yb(3+) doped phosphate and Er(3+) doped aluminosilicate glasses, inferring that clustering plays an important role in irradiation induced quenching.

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Evolution of Yb3+ environment and luminescence properties under ionizing irradiation in aluminoborosilicate glasses

Cited by 15 publications

References 32 publications

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

Network Structure and Rare-Earth Ion Local Environments in Fluoride Phosphate Photonic Glasses Studied by Solid-State NMR and Electron Paramagnetic Resonance Spectroscopies

Study of formation and sequential relaxation of paramagnetic point defects in electron-irradiated Na-aluminosilicate glasses: Influence of Yb

Impact of rare earth element clusters on the excited state lifetime evolution under irradiation in oxide glasses

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