Structural and fluorescence properties of Ho3+/Yb3+ doped germanosilicate glasses tailored by Lu2O3

Cao, Wenqian; Huang, Feifei; Ye, Renguang; Cai, Muzhi; Lei, Ruoshan; Zhang, Junjie; Xu, Shiqing; Zhang, Xianghua

doi:10.1016/j.jallcom.2018.02.325

Cited by 28 publications

(3 citation statements)

References 44 publications

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“…In addition, the wide peak at 300 cm -1 corresponds to the vibration mode of the interconnected GeO6 polyhedra [23] . The hump at 760 cm -1 is caused by two non-bridging oxygen atoms (Ge-O-NBO) of the GeO4 tetrahedron [24] and TiOn including titanium oxide quadruple, quintuple, and hexaplet clusters [8] . The lower peak of the binding energy is NBO and the higher binding energy is bridging oxygen (Bridging Oxygens, BOs).…”

Section: Glass Structurementioning

confidence: 99%

Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses

Jiabao¹,

Minghui²,

Huaiyu³

et al. 2023

Journal of Inorganic Materials

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La2O3-TiO2 glasses show promising application prospect in fields of lenses, optical windows, and optical communication, owing to high refractive index and excellent performance. However, this glass cannot be prepared into large size because of its weak glass forming ability. This seriously limits the application of this new glass. In this study, introducing the network former GeO2, the glass forming ability can be effectively improved. This enables large-sized GeO2-La2O3-TiO2 (GLT) glass to be prepared using conventional methods. Differential thermal analysis shows that GLT glasses have high glass transition temperature and strong resistance to precipitation, with Tg and ΔT (ΔT =Tc-onset-Tg) greater than 833 and 209 ℃, respectively. The refractive index is up to 2.06. The transmittance can reach 78% in the visible and near-infrared wavelength bands. The influence of titanium contents on the structure, thermal, and optical property has been researched. The results show that the glass forming ability and thermal stability can be weakened by increasing the content of TiO2. The molar volume and oxygen electron polarizability exhibit the same variation trends as the refractive index of the samples. This glass is important for developing new devices with high performance, light weight, and small size.

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Section: Glass Structurementioning

confidence: 99%

Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses

Jiabao¹,

Minghui²,

Huaiyu³

et al. 2023

Journal of Inorganic Materials

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“…The melting point of lutetium oxide (Lu 2 O 3 ) is as high as 2490 ℃, and there is no phase transition below the melting point [1][2][3][4]. The characteristics of corrosion resistance, low phonon energy [5], and high structural tolerance make it promising in the fields of refractory materials [6], catalytic materials [7], superconductivity [8], optics [9][10][11][12][13][14], magnetic materials [10], and highenergy radiation detection [13]. Especially in optics, Lu 2 O 3 has received extensive attention as a promising scintillator candidate material.…”

Section: Introduction mentioning

confidence: 99%

Development of lutetium oxide continuous fibers with excellent mechanical properties

Xie¹,

Peng²,

WANG³

et al. 2023

Journal of Advanced Ceramics

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The difficulty of reducing the diameter of lutetium oxide (Lu 2 O 3 ) continuous fibers below 50 μm not only limits the flexibility of the sample but also seriously affects their application and development in high-energy lasers. In this work, a Lu-containing precursor with high ceramic yield was used as raw material, fiberized into precursor fibers by dry spinning. The pressure-assisted water vapor pretreatment (PAWVT) method was creatively proposed, and the effect of pretreatment temperature on the ceramization behavior of the precursor fibers was studied. By regulating the decomposition behavior of organic components in the precursor, the problem of fiber pulverization during heat treatment was effectively solved, and the Lu 2 O 3 continuous fibers with a diameter of 40 μm were obtained. Compared with the current reported results, the diameter was reduced by about 50%, successfully breaking through the diameter limitation of Lu 2 O 3 continuous fibers. In addition, the tensile strength, elastic modulus, flexibility, and temperature resistance of Lu 2 O 3 continuous fibers were researched for the first time. The tensile strength and elastic modulus of Lu 2 O 3 continuous fibers were 373.23 MPa and 31.55 GPa, respectively. The as-obtained flexible Lu 2 O 3 continuous fibers with a limit radius of curvature of 3.5-4.5 mm had a temperature resistance of not lower than 1300 ℃, which established a solid foundation for the expansion of their application form in the field of high-energy lasers.

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“…The first can be solved by using Pr 3+ ions as a depopulator to quench the lower level of Ho 3+ : 5 I 7 . The second problem can be solved through sensitization of the Ho 3+ by Er 3+ or Yb 3+ ions and through obtaining luminescence by Yb 3+ , Er 3+ → Ho 3+ energy transfer [26,[28][29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Fluoroindate Glass Co-Doped with Yb3+/Ho3+ as a 2.85 μm Luminescent Source for MID-IR Sensing

Kochanowicz

Żmojda

Baranowska

et al. 2021

Sensors

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This work reports on the fabrication and analysis of near-infrared and mid-infrared luminescence spectra and their decays in fluoroindate glasses co-doped with Yb3+/Ho3+. The attention has been paid to the analysis of the Yb3+→ Ho3+ energy transfer processed ions in fluoroindate glasses pumped by 976 nm laser diode. The most effective sensitization for 2 μm luminescence has been obtained in glass co-doped with 0.8YbF3/1.6HoF3. Further study in the mid-infrared spectral range (2.85 μm) showed that the maximum emission intensity has been obtained in fluoroindate glass co-doped with 0.1YbF3/1.4HoF3. The obtained efficiency of Yb3+→ Ho3+ energy transfer was calculated to be up to 61% (0.8YbF3/1.6HoF3), which confirms the possibility of obtaining an efficient glass or glass fiber infrared source for a MID-infrared (MID-IR) sensing application.

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Structural and fluorescence properties of Ho3+/Yb3+ doped germanosilicate glasses tailored by Lu2O3

Cited by 28 publications

References 44 publications

Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses

Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses

Development of lutetium oxide continuous fibers with excellent mechanical properties

Fluoroindate Glass Co-Doped with Yb3+/Ho3+ as a 2.85 μm Luminescent Source for MID-IR Sensing

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Structural and fluorescence properties of Ho3+/Yb3+ doped germanosilicate glasses tailored by Lu2O3

Cited by 28 publications

References 44 publications

Structural, Thermal, and Optical Properties of GeO2-La2O3-TiO2 Glasses

Structural, Thermal, and Optical Properties of GeO2-La2O3-TiO2 Glasses

Development of lutetium oxide continuous fibers with excellent mechanical properties

Fluoroindate Glass Co-Doped with Yb3+/Ho3+ as a 2.85 μm Luminescent Source for MID-IR Sensing

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Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses

Structural, Thermal, and Optical Properties of GeO₂-La₂O₃-TiO₂ Glasses