Investigation of optical and thermal properties in Er3+-doped Ga2O3-La2O3-Ta2O5 glasses fabricated by containerless solidification

Xie, Jiansheng; Zhang, Minghui; Guo, Rongting; Shi, Ying; Liu, Xuechao; Pan, Xiuhong; Chen, Kun; Deng, Wei

doi:10.1016/j.jallcom.2021.159651

Cited by 11 publications

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“…Aerodynamic levitation (ADL) technique is a newly developed containerless solidification method for allowing the vitrification of unconventional components without adding any network‐forming substances, during which the gravity of the sample can be counteracted by controlling the high‐speed airflow out of the nozzle, and then the sample is in a containerless state and melted by using laser irradiation, thereby avoiding inhomogeneous nucleation and contamination from crucible surfaces as melts cool, facilitating deep undercooling of the levitated melt and achieving fast solidification. Using this technique, we previously prepared novel La 2 O 3 ‐Ga 2 O 3 ‐Ta 2 O 5 glasses with unexpectedly remarkable features, including excellent mechanical, optical, and thermal properties, 20 which allows the potential for providing a good luminescent environment for RE 3+ ions. Here, Er 2 O 3 , Tm 2 O 3 , and Pr 6 O 11 are chosen as dopants and incorporated into LGT glass simultaneously by replacing La 2 O 3 .…”

Section: Introductionmentioning

confidence: 99%

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er³⁺/Tm³⁺/Pr³⁺ tri‐doped La₂O₃‐ Ga₂O₃‐Ta₂O₅ glasses synthesized using aerodynamic levitation method

et al. 2023

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Glasses with ultra‐wideband near‐infrared emission and superior irradiation resistance are important for the potential applications in optical communications under harsh environment. Here, transparent 35La2O3‐(65‐x)Ga2O3‐xTa2O5 (LGT) and Er3+/Tm3+/Pr3+ tri‐doped LGT glasses are fabricated using levitation method. LGT glasses exhibit a wide glass‐formation region, low largest vibration energy, high refractive indices and excellent mechanical properties. Additionally, Er3+/Tm3+/Pr3+ tri‐doped LGT samples with varying Pr3+ contents are characterized by possessing good thermal stability (Tg >849°C), wide transparent optical window, strong radiation resistance, excellent compatibility between low wavelength dispersion (vd >31.2) and large refractive index (nd >2.048). By optimizing the doping content of Er3+, Tm3+ and Pr3+ in appropriate ratio, the ultra‐wideband near‐infrared luminescence ranging of 1250–1640 nm (FWHM = 251 nm) has been acquired under 808 nm pumping. Furthermore, decay curves are measured to reveal the fluorescence dynamics and then the related emission mechanism is elaborated systematically. Meanwhile, the effects of gamma irradiation doses on microstructure, transmittance spectra and fluorescence characteristics are studied. This work may offer a valuable reference for doping optimization and new design strategy of multifunctional materials.This article is protected by copyright. All rights reserved

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Section: Introductionmentioning

confidence: 99%

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er³⁺/Tm³⁺/Pr³⁺ tri‐doped La₂O₃‐ Ga₂O₃‐Ta₂O₅ glasses synthesized using aerodynamic levitation method

et al. 2023

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“…useful for radiation dosimetry processes [4]. The addition of BaO to the pure silicate host enhances the refractive index, reduces the glass discussion, and improves glass resource optically inert.…”

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Multifunctional Ba(10-x) Nix La30 Si60 Glassy Composites for Thermoluminescent, and Opto-electronic Use

Guntu¹

2021

Preprint

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Past three decades to current literature, lanthanum silicates embedded with nickel ions are notable for different opto-electronic and semiconducting use. Current days of opto-electronics, including advanced semiconducting resources, need different assemblies of glass resources employing elastic, luminescent, and electronic characteristics. In this view, the opto-electronic resource of chemical composition Ba(10-x)NixLa30Si60 has planned for synthesis followed by mechanical, thermoluminescent, and opto-electronic characterization. The materials developed are showing glassy behavior, and which was confirmed by the structural characterization. The glass with 0.6 mol% NiO concentration exhibiting better thermal stability. Observations made on the elastic characterization of glasses suggested covalent structure. DTA results which include thermal stabilities of glasses, suggest materials are capable of high thermal stability. Molecular structure of glasses studied with the help of FT-IR spectra. Different structural units and their waves number positions are identified and analysed. Which also suggested glassy behavior. D.C. Conductivity reports suggest that the materials are electrically active, and they are showing few orders of ionic conductivity. A decrease in optical basicity with increasing NiO mol% of glasses suggests high order of covalence. Trap depth parameters (Tm, E𝛕, E𝛅, E𝛚 & ms) under thermoluminescence studies suggest glass with 0.6 mol% NiO concentration is a beneficial TL resource. Optical absorption spectra of glasses is recorded, and which helps to calculate the Racah parameters of glasses. Refractive index, emissive cross-section, optical band gap, and transition probability of nickel hosted present glasses evaluated with the help of photoluminescence characterization. This suggests glasses embedded with nickel ions are highly photonic. All the outcomes from the various characterization of glasses which include mechanical, thermoluminescent, and photo-electronic results, suggest a glass with 0.6 mol% NiO concentration is a helpful thermoelement and opto-electronic resource.

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Photoluminescence and TL defect center analysis of radiation shielding Ba(25-x)La15Si60Nix glasses

Guntu

2023

Opt Quant Electron

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Investigation of optical and thermal properties in Er3+-doped Ga2O3-La2O3-Ta2O5 glasses fabricated by containerless solidification

Cited by 11 publications

References 42 publications

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er³⁺/Tm³⁺/Pr³⁺ tri‐doped La₂O₃‐ Ga₂O₃‐Ta₂O₅ glasses synthesized using aerodynamic levitation method

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er³⁺/Tm³⁺/Pr³⁺ tri‐doped La₂O₃‐ Ga₂O₃‐Ta₂O₅ glasses synthesized using aerodynamic levitation method

Multifunctional Ba(10-x) Nix La30 Si60 Glassy Composites for Thermoluminescent, and Opto-electronic Use

Photoluminescence and TL defect center analysis of radiation shielding Ba(25-x)La15Si60Nix glasses

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Investigation of optical and thermal properties in Er3+-doped Ga2O3-La2O3-Ta2O5 glasses fabricated by containerless solidification

Cited by 11 publications

References 42 publications

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er3+/Tm3+/Pr3+ tri‐doped La2O3‐ Ga2O3‐Ta2O5 glasses synthesized using aerodynamic levitation method

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er3+/Tm3+/Pr3+ tri‐doped La2O3‐ Ga2O3‐Ta2O5 glasses synthesized using aerodynamic levitation method

Multifunctional Ba(10-x) Nix La30 Si60 Glassy Composites for Thermoluminescent, and Opto-electronic Use

Photoluminescence and TL defect center analysis of radiation shielding Ba(25-x)La15Si60Nix glasses

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Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er³⁺/Tm³⁺/Pr³⁺ tri‐doped La₂O₃‐ Ga₂O₃‐Ta₂O₅ glasses synthesized using aerodynamic levitation method

Tunable ultra‐wideband NIR emission and irradiation resistance in novel Er³⁺/Tm³⁺/Pr³⁺ tri‐doped La₂O₃‐ Ga₂O₃‐Ta₂O₅ glasses synthesized using aerodynamic levitation method