Concentration-dependence and luminescence studies of erbium doped barium lithium fluoroborate glasses

Mariselvam, K.; Kumar, R. Arun; Rao, V. R.

doi:10.1016/j.optlastec.2019.04.028

Cited by 44 publications

(9 citation statements)

References 26 publications

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“…In general, the luminescent properties of RE ions in the inorganic glasses depend on the chemical composition of the host glass, the activator concentration (lanthanide ions as optically active dopants), and the excitation power (pumping system). These factors and in particular the oxyfluoride environment (phonon energy) of the active ion significantly affect the emission efficiency of excited states of Er 3+ ions in the glasses [91,92,93,94]. It is also discussed in our investigated system glass and GC TP system.…”

Section: Resultsmentioning

confidence: 94%

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: 94%

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

et al. 2019

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“…The infrared light of higher wavelength (i.e., 1550 nm) emission invokes the notion that the Er 3+ -glass materials 12 can be a pronounced optical waveguide for numerous optical-fiber applications. The high refractive index (i.e., 2.6050−2.6794) and metallization metric (i.e., 0.3268−0.3414) of Er 3+borotellurite nanocomposites 19 suggest that the Er 3+ has high potentials in optical-fiber amplifications.…”

Section: Reos' Optical Applications and Prospectsmentioning

confidence: 99%

“…They have revealed a superiority to other materials such as fluoride- and lithium-based glasses, P 2 O 5 , etc. in terms of various optical applications − because of their thermal and chemical stability, longevity, nonlinear refraction, high quantum yield, etc. As a result, REO-doped materials have an enormous prospect in replacing conventional materials.…”

Section: Introductionmentioning

confidence: 99%

“…This review article broadly discusses the prevailing works related to R 2 O 3 (R = Ce, Sm, Eu, Gd, Dy, Y, Er, and Yb) doped inorganic materials, which have shown noteworthy results for optical applications. − The review begins with a general overview of the optical applications of REOs. Then the applications in various optical sectors are discussed in detail from the available literature, which is followed by discussions of promising prospects in each section.…”

Section: Introductionmentioning

confidence: 99%

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A Review on Optical Applications, Prospects, and Challenges of Rare-Earth Oxides

Hossain

Ahmed

et al. 2021

ACS Appl. Electron. Mater.

102

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In small- and large-scale industries, manipulable optical characteristics are desired. In this regard, rare-earth oxides (REOs) have been providing pragmatic attributes in terms of successful implementations and promising prospects throughout the last few decades. Currently, there is no comprehensive literature review on REOs that can aid researchers in focusing on industry-relevant emerging materials. Therefore, this review reports studies that have been able to experimentally utilize the physical, chemical, thermal, electronic, spectroscopic, and photocatalytic properties of REOs in the optical field. The brief and focused review finds that the most pronounced applications of REOs in the optical field are in white light and laser, while the prospective ground likely lies in optoelectronics, fiber optic applications, and miscellaneous repertoires that incorporate an innovative utilization of an electronic configuration of REOs. From the perspective of this review, the versatility of an REO in the optical field has become prominent and quantified by the successful implementations of REOs in white light and nonwhite light applications. Furthermore, the innovative applications of REOs include but are not limited to the development of solid-state optical devices, optoelectronic systems, and photocatalytic agents. Specifically, their futuristic applications are likely to be led by the development of stronger emission devices and the obtaining of flexible doping characteristics by several ions such as Li+, Eu3+, Dy3+, Nd3+, La3+, Yb3+, etc. at different levels, which will render the pathway for further exploration in this regard. However, the improvement in terms of methodological attributes requires a serious consideration of overcoming the limitation of thermal stability, lack of exploration of several types of lights, photodarkening in critical applications, lack of applicability at a wide range of temperatures, and so on. From an industrial perspective, it can be conjectured from the reported literature that the challenges will be overcome at a large scale within a few years due to the expedited technological advancements of the experimental repertoires, rendering the REO applications in the optical field reasonably economic and commercially viable. In short, this is the first review that objectively considers the applications and prospects of REOs, which will essentially invoke several studies to investigate the specific properties and viability of REOs in the optical field.

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“…In particular, the processes related to the nonradiative transitions are emphasized, because they can increase the heat deposited on the material and produce concentration quenching which reduces the inversion density, manifested by a rapid reduction of the fluorescence lifetime and luminescence quantum efficiency [9]. In the case of rare earth ion doping with high concentrations, non-radiative mechanisms of the energy transfer process reduce the lifetime of absorbed light in glass [10][11][12]. It can cause a narrowing of the absorption and emission band of the glass and consequently a luminescence quenching that can limit the use of rare earth ion-doped glasses in photonic applications [13].…”

Section: Introductionmentioning

confidence: 99%

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

et al. 2021

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In this work, time-resolved thermal lens and beam deflection methods were applied to determine the thermo-optical properties of Er3+ doped sulfophosphate glass in which different concentrations of Titanium dioxide (TiO2) nanoparticles (NPs) were embedded. Thermal diffusivity (D), thermal conductivity (κ), and the temperature coefficient of the optical path length (ds/dT) were determined as a function of NPs concentrations. Moreover, the growth of TiO2 NPs inside the amorphous glass matrix was evidenced by Transmission Electron Microscopy (TEM) images as well as through optical effects such as refractive index change of the glass. The outcomes indicated relatively high values for D and κ as well as a low ds/dT as required for most optical components used for laser media. The addition of TiO2 NPs with concentration of dopants up to 0.6 mol% improved the optical properties of the glass samples but did not affect its thermal properties. The results indicate that the enhanced optical and thermal performance of the proposed co-doped glass fits the quality standards for materials used in photonic devices.

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Concentration-dependence and luminescence studies of erbium doped barium lithium fluoroborate glasses

Cited by 44 publications

References 26 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

A Review on Optical Applications, Prospects, and Challenges of Rare-Earth Oxides

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

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