Up-conversion luminescence and optical thermometry properties of transparent glass ceramics containing CaF2:Yb3+/Er3+ nanocrystals

Cai, Jiajia; Wei, Xiantao; Hu, Fangfang; Cao, Zhongmin; Zhao, Lu; Chen, Yonghu; Duan, Chang‐Kui; Yin, Min

doi:10.1016/j.ceramint.2016.06.002

Cited by 78 publications

(21 citation statements)

References 25 publications

(31 reference statements)

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“…shown above in Table 1, the results obtained are similar to those published previously in oxy-fluorinated glasses based on tellurite [27,28], and also in aluminum silicate [16,17,[29][30][31][32][33][34].…”

Section: Thermal Stability Of G-gto and G-gtof Glassessupporting

confidence: 90%

Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics

et al. 2019

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A new 30 GeO 2-30 TeO 2-15 ZnO-10 Na 2 CO 3-10 CaF 2-3 La 2 O 3-2 YbF 3 glass composition was synthesized and submitted to several heat treatments to provoke nanocrystallization in its bulk. The formation of nanocrystallites was evidenced by high resolution transmission electron microscopy and X-ray diffraction, and their nature and size was characterized. The spectroscopic and magnetic properties of the Yb 3+ ions dissolved in the glass and, presumably, in the nanocrystallites, were investigated by absorption and emission spectroscopies (including anti-Stokes emissions from Tm 3+ and Er 3+ impurities), fluorescence transients and magnetic susceptibility measurements. It was found that the Yb 3+ ions experimental lifetime and average effective magnetic moment, as well as Tm 3+ and Er 3+ ions anti-Stokes emission intensities, increase with increasing crystallization state of the initial glass.

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Section: Thermal Stability Of G-gto and G-gtof Glassessupporting

confidence: 90%

Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics

et al. 2019

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“…This band corresponds to stretching vibrations of tetrahedrons [SiO 4 ] with various polymerization degree [22,23]. Introducing Gd 2 O 3 to the glass does not shift the bands at 1187 cm -1 , which is connected with asymmetric Si-O-Si Q 4 and Si=O bond vibrations [24]. It can be an evidence that substitution of Al atoms with Gd does not cause silicate network depolymerization.…”

Section: Ftir Studymentioning

confidence: 71%

“…For receiving higher luminescence efficiency and greater lifetime, the lanthanides atoms should be located in low-phonon phase, in this case the fluoride phase with higher symmetry. For this purpose, the silicate glasses doped with LaF 3 [2,3], CaF 2 [4,5] and BaF 2 [6,7] were studied. The results of the research confirmed the improvement in luminescent properties of the materials.…”

Section: Introductionmentioning

confidence: 99%

Influence of Gd2O3 on thermal stability of oxyfluoride glasses

Kasprzyk

Środa

Szumera

2017

J Therm Anal Calorim

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The aim of the research was to determine the influence of Gd 2 O 3 addition on the thermal stability of glasses from BaF 2 -NaF-Na 2 O-Gd 2 O 3 -Al 2 O 3 -SiO 2 system. Thermal analysis was carried out using DSC method. An impact of Gd 2 O 3 on thermal parameters such as transformation temperature (T g ), onset temperature of crystallization (T x ), peak crystallization temperature (T p ), change of specific heat (DC p ) and enthalpy of crystallization (DH) was determined. On the basis of thermal analysis, controlled crystallization was conducted. The glass-ceramic materials were identified by XRD. Crystallization kinetics of the glasses was made on the basis of two models: Kissinger and Ozawa. Changes of the glass structure were evaluated in FTIR study. It was determined that the addition of Gd 2 O 3 to the aluminosilicate glass increases the transformation temperature, simultaneously with reducing the Dc p and thermal stability DT values. It results in the decrease of DH. As shown, Gd significantly increases the crystallization activation energy of NaAlSi 3 O 8 . Complete substitution of Al 2 O 3 with Gd 2 O 3 leads to forming of Gd 9.33 (SiO 4 ) 6 O 2 . Forming of Na-silicates is not observed. Because of the participation of Gd in forming of fluoride phases (BaGdF 5 , GdF 3 ), crystallization of Gd 9.33 (SiO 4 ) 6 O 2 is impeded.

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“…The decrease in emission intensity of PG-0.6 with higher concentration of Er 3+ ion is due to the concentration quenching effect. 33 Figure 4B,C presents the UC emission spectra for the PG-0.5 and GCs obtained at different heat treating regime upon laser excitation of 980 nm. The positions of the emission peaks of PG-0.5 and GCs samples are not changed, but the emission intensity of GCs is obviously higher than that of…”

Section: Up-conversion Emission Spectramentioning

confidence: 99%

Enhanced up‐conversion luminescence and optical thermometry characteristics of Er³⁺/Yb³⁺ co‐doped Sr₁₀(PO₄)₆O transparent glass‐ceramics

Cui

Chen

2020

J Am Ceram Soc

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In this paper, the Yb 3+ /Er 3+ co-doped parent glass (PG) with composition (in mol%) of 30P 2 O 5-10B 2 O 3-38SrO-22K 2 O and transparent glass-ceramics (GCs) containing hexagonal Sr 10 (PO 4) 6 O nanocrystals (NCs) were synthesized for the first time by melt-quenching method and subsequent heating treatment in air. Under 980 nm laser prompting, the GCs samples showed intense red and green up-conversion emissions compared to those characteristics for the PG sample. The emission intensities varied with Er 3+ concentration and heat treatment conditions. Furthermore, in Yb 3+ /Er 3+ co-doped GCs specimens, the optical thermometry was researched by means of fluorescence intensity ratio (FIR) of 4 S 3/2 and 2 H 11/2 levels. The GC sample heated at 620°C for 5 hours possessed a high relative temperature sensitivity (S r) of 0.769% K −1 at 303 K and the maximal absolute temperature sensitivity (S a) of 5.951 × 10 −3 K −1 at 663 K, respectively. It is expected that the as-fabricated GC materials with Sr 10 (PO 4) 6 O NCs are promising efficient up-conversion materials for optical temperature sensor.

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Up-conversion luminescence and optical thermometry properties of transparent glass ceramics containing CaF2:Yb3+/Er3+ nanocrystals

Cited by 78 publications

References 25 publications

Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics

Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics

Influence of Gd2O3 on thermal stability of oxyfluoride glasses

Enhanced up‐conversion luminescence and optical thermometry characteristics of Er³⁺/Yb³⁺ co‐doped Sr₁₀(PO₄)₆O transparent glass‐ceramics

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Up-conversion luminescence and optical thermometry properties of transparent glass ceramics containing CaF2:Yb3+/Er3+ nanocrystals

Cited by 78 publications

References 25 publications

Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics

Yb3+- and CaF2 nanocrystallites-containing oxyfluorogermanotellurite glass-ceramics

Influence of Gd2O3 on thermal stability of oxyfluoride glasses

Enhanced up‐conversion luminescence and optical thermometry characteristics of Er3+/Yb3+ co‐doped Sr10(PO4)6O transparent glass‐ceramics

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Enhanced up‐conversion luminescence and optical thermometry characteristics of Er³⁺/Yb³⁺ co‐doped Sr₁₀(PO₄)₆O transparent glass‐ceramics