Er<sup>3+</sup> Ions‐Doped Germano‐Gallate Oxyfluoride Glass‐Ceramics Containing BaF<sub>2</sub> Nanocrystals

Zhao, Zhiyong; Ai, Bing; Liu, Chao; Yin, Qiaoyun; Xia, Mengling; Zhao, Xiujian; Jiang, Yang

doi:10.1111/jace.13592

Cited by 35 publications

(14 citation statements)

References 29 publications

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“…In the research, it may be found that rare-earth ions like Er 3+ are the luminescence centers in BaF 2 nanocrystals in the glass-ceramic [101,134,135,136]. Chen et al obtained transparent glass-ceramics containing BaF 2 nanocrystals doped with Er 3+ , prepared by the sol-gel route.…”

Section: Resultsmentioning

confidence: 99%

“…The enhanced upconversion luminescence of the Er 3+ ions in transparent oxyfluoride GCs containing BaF 2 nanocrystals in the SiO 2 -ZnF 2 -BaF 2 -ErF 3 system has been also investigated by Qiao et al [135]. The erbium-doped germano-gallate oxyfluoride glass-ceramics containing BaF 2 nanocrystals with the high transmittance in the mid-infrared region were prepared by Zhao et al [136]. Unfortunately, to the best of our knowledge, no reports of the transparent Er 3+ -doped BaF 2 glass-ceramic in the oxyfluoride phospho-tellurite exist in the literature.…”

Section: Resultsmentioning

confidence: 99%

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Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

et al. 2019

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The ErF3-doped oxyfluoride phospho-tellurite glasses in the (40-x) TeO2-10P2O5-45 (BaF2-ZnF2) -5Na2O-xErF3 system (where x = 0.25, 0.50, 0.75, 1.00, and 1.25 mol%) have been prepared by the conventional melt-quenching method. The effect of erbium trifluoride addition on thermal, structure, and spectroscopic properties of oxyfluoride phospho-tellurite precursor glass was studied by differential scanning calorimetry (DSC), Fourier-transform infrared (FTIR), and Raman spectroscopy as well as emission measurements, respectively. The DSC curves were used to investigate characteristic temperatures and thermal stability of the precursor glass doped with varying content of ErF3. FTIR and Raman spectra were introduced to characterize the evolution of structure and phonon energy of the glasses. It was found that the addition of ErF3 up to 1.25 mol% into the chemical composition of phospho-tellurite precursor glass enhanced 2.7 µm emission and upconversion. By controlled heat-treatment process of the host glass doped with the highest content of erbium trifluoride (1.25 mol%), transparent erbium-doped phospho-tellurite glass-ceramic (GC) was obtained. X-ray diffraction analysis confirmed the presence of BaF2 nanocrystals with the average 16 nm diameter in a glass matrix. Moreover, MIR, NIR, and UC emissions of the glass-ceramic were discussed in detail and compared to the spectroscopic properties of the glass doped with 1.25 mol% of ErF3 (the base glass).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

et al. 2019

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“…In recent years, lanthanide (Ln 3+ ) and transition metal (TM) ions doped glass‐ceramics (GC) have gained much importance in the field of optical thermometric study . The Ln 3+ ‐doped based optical thermometers are primarily based on temperature correlated fluorescence intensity ratio (FIR) of thermally coupled energy levels, such as 2 H 11/2 and 4 S 3/2 of Er 3+ ions .…”

Section: Introductionmentioning

confidence: 99%

Multi‐phase glass‐ceramics containing CaF₂: Er³⁺ and ZnAl₂O₄:Cr³⁺ nanocrystals for optical temperature sensing

Wadhwa

Wang

et al. 2018

J Am Ceram Soc

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Oxyfluoride transparent glass-ceramics (GC) containing CaF 2 and ZnAl 2 O 4 nanocrystals have been fabricated with melt-quenching method. By carrying out the heat treatment of the precursor glass (PG), Er 3+ and Cr 3+ were selectively partitioned into CaF 2 and ZnAl 2 O 4 nanocrystals, respectively. The obtained multiphase GC exhibited strong upconversion (UC) fluorescence of Er 3+ as well as intense down-conversion (DC) fluorescence of Cr 3+ . Under 980 nm excitation, the green UC fluorescence of Er 3+ due to 2 H 11/2 , 4 S 3/2 → 4 I 15/2 transition and the red DC fluorescence lifetime of Cr 3+ due to 2 E, 4 T 2 → 4 A 2 transition were found to be highly dependent on the temperature and makes them possibly suitable for Optical Thermometry. With least-square fitting methods, the FIR of Er 3+ from thermally coupled energy states ( 2 H 11/2 and 4 S 3/2 ) produced maximum temperature sensing sensitivity values of 0.33% K −1 at 437 K and 0.36% K −1 at 267 K, respectively. Similarly, fluorescence lifetime of Cr 3+ attributed to the parity forbidden ( 2 E → 4 A 2 ) and spin allowed ( 4 T 2 → 4 A 2 ) produced the maximum temperature sensor sensitivity value equal to 0.67% K −1 at 535 K. K E Y W O R D Sfluorescence, multi-phase glass-ceramics, optical temperature sensing, rare earths, transition metals, upconversion

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“…Rare‐earth ‐doped oxyfluoride glasses have attracted much attention for their potential applications in photonic devices due to their interesting optical properties . In particular, inorganic heavy‐metal glasses play an important role, due to their features, such as high refractive index, density, and low phonon energies .…”

Section: Introductionmentioning

confidence: 99%

Effect of BaF₂ Content on Luminescence of Rare‐Earth Ions in Borate and Germanate Glasses

et al. 2016

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Rare-earth-doped oxyfluoride germanate and borate glasses were synthesized and next studied using spectroscopic methods. Influence of fluoride modifier on luminescence properties of rare earths in different glass hosts was examined. The excitation and emission spectra of Pr 3+ and Er 3+ ions in the studied glasses were registered. The emission spectra of Pr 3+ ions in germanate and borate glasses are quite different and depend strongly on the glass host. In samples doped with Er 3+ ions emission bands located around 1530 nm corresponding to the main 4 I 13/2 ? 4 I 15/2 laser transition were registered, independently of the glass host. Quite long-lived near-infrared luminescence of Er 3+ ions was observed for germanate glasses with low BaF 2 content, while in borate glass systems influence of barium fluoride on luminescence lifetimes is not so evident. The Judd-Ofelt calculations were used in order to determine quantum efficiencies of excited states of rare-earth ions in germanate and borate glasses.

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Er³⁺ Ions‐Doped Germano‐Gallate Oxyfluoride Glass‐Ceramics Containing BaF₂ Nanocrystals

Cited by 35 publications

References 29 publications

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

Multi‐phase glass‐ceramics containing CaF₂: Er³⁺ and ZnAl₂O₄:Cr³⁺ nanocrystals for optical temperature sensing

Effect of BaF₂ Content on Luminescence of Rare‐Earth Ions in Borate and Germanate Glasses

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Er3+ Ions‐Doped Germano‐Gallate Oxyfluoride Glass‐Ceramics Containing BaF2 Nanocrystals

Cited by 35 publications

References 29 publications

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

Spectroscopic Properties of Erbium-Doped Oxyfluoride Phospho-Tellurite Glass and Transparent Glass-Ceramic Containing BaF2 Nanocrystals

Multi‐phase glass‐ceramics containing CaF2: Er3+ and ZnAl2O4:Cr3+ nanocrystals for optical temperature sensing

Effect of BaF2 Content on Luminescence of Rare‐Earth Ions in Borate and Germanate Glasses

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Resources

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Er³⁺ Ions‐Doped Germano‐Gallate Oxyfluoride Glass‐Ceramics Containing BaF₂ Nanocrystals

Multi‐phase glass‐ceramics containing CaF₂: Er³⁺ and ZnAl₂O₄:Cr³⁺ nanocrystals for optical temperature sensing

Effect of BaF₂ Content on Luminescence of Rare‐Earth Ions in Borate and Germanate Glasses