Luminescence studies on varied concentration of Eu3+ doped SrO-ZnO-PbO-P2O5 glasses for photonic applications

Maity, Annada C.; Jana, Samar; Mitra, Subrata

doi:10.1016/j.materresbull.2021.111595

Cited by 20 publications

(13 citation statements)

References 32 publications

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“…It is observed that the densities increase with Eu 2 O 3 added at the expense of BaO, namely, from 3.680 g cm −3 for the glass host up to 3.812 g cm −3 for the glass with 6 mol % Eu 2 O 3 . Increasing densities were also reported recently by Maity et al 18 for substitutive glass series xEu 2 O 3 -3SrO-(6 − x)ZnO-30PbO-61P 2 O 5 glasses with x = 0.5, 1, 2, and 4 mol %. In the glass series studied herein, as a direct consequence of the modifier substitution, the [O]/[P] ratio increases from 3.0 (in BaP) to 3.12 (in 6Eu); see Table 1.…”

Section: ■ Introductionsupporting

confidence: 82%

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Eu³⁺ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Jiménez

Sendova

2023

J. Phys. Chem. B

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Phosphate glasses incorporating large concentrations of Eu 3+ ions are of interest for optical applications as their distinct red-emitting character resists deterioration with increasing Eu 3+ content. Still, the low propensity for concentration quenching in these is not well understood, and thus evaluations linking structural, thermal, and optical properties with Eu 3+ content are desired. In this work, 50P 2 O 5 -(50 − x)BaO-xEu 2 O 3 (x = 0, 1, 2, 4, 6 mol %) glasses pertinent to photonics were prepared by melt-quenching and further scrutinized with regards to the composition−structure−property relationship. A comprehensive experimental investigation was carried out encompassing density and basic physical properties, X-ray diffraction (XRD), Raman scattering, dilatometry, differential scanning calorimetry (DSC), optical absorption, and photoluminescence (PL) spectroscopy with emission decay analysis. The data from six techniques are in strong agreement with the existence of a critical Eu 2 O 3 concentration which divides the studied concentration range into two sections: (1) lower concentrations, up to about 2.5 (±0.1) mol %, with predominantly long-range (LR) effects of the modifier electrostatic field and (2) higher dopant concentrations, with predominantly short-range (SR) effects of the modifier field. The authors propose that LR interactions lead to shortening of the P-tetrahedral chains, while the SR interactions are expressed in increasing the covalent character of the bonds between the nonbridging oxygens and Eu 3+ ions. Concentration correlations between diverse macroscopic data sets, such as densitometry, dilatometry, Raman scattering, calorimetry, and PL, concur synergistically, elucidating the microscopic physical LR−SR interplay between glass network former and the cationic electrostatic field of the modifiers.

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Section: ■ Introductionsupporting

confidence: 82%

“…1 Certainly, phosphatebased glasses are attractive hosts for Eu 3+ ions for photonic applications. 10,17,18 Nevertheless, the physical origin behind the propensity of Eu 3+ -doped phosphate glasses to avoid concentration quenching is not utterly clear.…”

Section: ■ Introductionmentioning

confidence: 99%

Eu³⁺ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Jiménez

Sendova

2023

J. Phys. Chem. B

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“…The luminescence branching ratio is another crucial measure to quantify laser power. KZPEu 0.637 0.351 2117 [44] 3.11 | Photoluminescence lifetime decay analysis…”

Section: Radiative Propertiesmentioning

confidence: 99%

“…Using the formula detailed in the literature, colour coordinates (x, y) for chromaticity were computed using emission data. [41][42][43][44] The CIE standard reference for identifying visible colours of human eyes, particularly the borders of the CIE diagram corresponded to monochromatic light. The CIE coordinate values for the PBNSEu glass were evaluated, and the results are displayed in Table 7.…”

Section: Cie and Cct Parametersmentioning

confidence: 99%

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Optical, emission, and excitation dynamics of Eu³⁺‐doped bismuth‐based phosphate glass for visible display laser applications

et al. 2022

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Eu3+‐doped‐bismuth‐based phosphate glasses with chemical equation (60 − x)P2O5–20Bi2O3−10Na2CO3–10SrF2–xEu2O3 (PBNSEu), (where x = 0, 0.1, 0.5, 1.0, 1.5 and 2 mol%) were fabricated using the melt‐quenching method. Obtain X‐ray diffraction (XRD), energy‐dispersive X‐ray (EDAX), and Fourier transform infrared (FTIR) spectra were used to characterize the structure of the prepared PBNSEu glass. The J–O (Judd–Ofelt) intensity parameters (Ω2, Ω4) were estimated using photoluminescence emission spectra. When excited with a xenon lamp at λexc = 394 nm, the most intense red‐emission transition occurred at ~612 nm (5D0→7F2). J–O intensity parameters were used to calculate radiative properties, whereas the radiative branching ratio (βR), radiative transition probability (AR), radiative lifetime (τR), and total radiative transition rate (Aτ) were calculated for the transitions 5D0→7FJ (where J = 0–4) and were obtained in the emission spectra for europium ion‐doped in the current glass. Using the CIE1931 chromaticity coordinates axes, the colours of various concentrations of Eu3+ ion‐doped PBNS glass were evaluated using the emission spectra. Temperature‐dependent luminescence spectra were recorded for the optimized PBNSEu20 glass to calculate the activation energy. These results strongly suggested red components in w‐LEDs and visible display laser applications.

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Enhancing the Electrical and Photoelectrical Efficacy with the Synergistic SrO–ZnO Nano‐Heterosystem

Jaffri,

Ahmad,

Abrahams

et al. 2024

Energy Tech

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Development of the sustainable materials for consolidation of the energy sustainability needs special emphasis in the current era of the increasing energy demand. In compliance with this, present investigation reports first investigation on the amended sustainable production conjugated with the microwave process of the strontium oxide (SrO) and zinc oxid (ZnO) forming SrO–ZnO nanoscale heterostructure. The band gap of the prepared green nanomaterial was tuned reducing it from 5.8 to 3.6 eV upon the formation of the nanocomposite. With the mixed cubic and hexagonal phase, these particles have average crystallite size of 66.4 nm and irregular shape. The electro‐catalytic assays have expressed the bifunctional role of the SrO–ZnO towards generation of the oxygen and hydrogen. However, it has an excellent hydrogen production capacity with the lower overpotential of 126 mV and Tafel slopes 123.6 mV dec−1. In addition, this nanomaterial has also exhibited superior electrochemical charge storage for batter applications with the unit capacity of 541.7 mAH g−1 and Rs = 0.4 Ω, reflecting facilitated diffusion at the interface. In terms of photovoltaic applications, SrO–ZnO nanocomposite has effectively passivated the perovskite solar cells by improving efficiency from 7.2% to 15.1%. Such an improved performance is associated with the chemical synergism.

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Luminescence studies on varied concentration of Eu3+ doped SrO-ZnO-PbO-P2O5 glasses for photonic applications

Cited by 20 publications

References 32 publications

Eu³⁺ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Eu³⁺ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Optical, emission, and excitation dynamics of Eu³⁺‐doped bismuth‐based phosphate glass for visible display laser applications

Enhancing the Electrical and Photoelectrical Efficacy with the Synergistic SrO–ZnO Nano‐Heterosystem

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Luminescence studies on varied concentration of Eu3+ doped SrO-ZnO-PbO-P2O5 glasses for photonic applications

Cited by 20 publications

References 32 publications

Eu3+ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Eu3+ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Optical, emission, and excitation dynamics of Eu3+‐doped bismuth‐based phosphate glass for visible display laser applications

Enhancing the Electrical and Photoelectrical Efficacy with the Synergistic SrO–ZnO Nano‐Heterosystem

Contact Info

Product

Resources

About

Eu³⁺ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Eu³⁺ Concentration Effects in Phosphate Glasses: An Experimental Study Linking Structural, Thermal, and Optical Properties

Optical, emission, and excitation dynamics of Eu³⁺‐doped bismuth‐based phosphate glass for visible display laser applications