Studies on structural, optical and spectral properties of Europium oxide doped phosphate glasses

Shajan, Deepa; Murugasen, Priya; Sagadevan, Suresh

doi:10.1016/j.ijleo.2017.02.013

Cited by 35 publications

(6 citation statements)

References 13 publications

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“…The band observed at around 1244 cm −1 is assigned to P=O asymmetric stretching vibration in PO 2 molecule [11]. The vibration band present at 1161 cm −1 is attributed to the symmetric stretching vibration mode of O–P–O [2]. A band at 1122 cm −1 is assigned to the symmetric stretching vibrations of PO 3 2− groups.…”

Section: Resultsmentioning

confidence: 99%

“…Glasses doped with REs possess exceptional optical properties, allowing them to be transparent across a wide spectral range, including the ultraviolet (UV)‐visible range. As a consequence, these glasses demonstrate outstanding performance and are well suited for various applications, such as sensors, non‐linear devices, display technologies, multicolour phosphors, light‐emitting diodes (LEDs) and optical fibres [1–3].…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, numerous investigations have been dedicated to exploring the impact of incorporating Eu 3+ into glasses. For instance, Shajan et al [2] conducted a comparative analysis of the structural and optical aspects of phosphate glasses doped with various elements such as neodymium(III) oxide (Nd 2 O 3 ), samarium(III) oxide (Sm 2 O 3 ) and europium(III) oxide (Eu 2 O 3 ). Similarly, Damodaraiah et al [8] conducted a recent study on the luminescent properties of Eu 3+ ‐doped bismuth‐phosphate glasses, with a specific focus on their potential applications in red emission devices.…”

Section: Introductionmentioning

confidence: 99%

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Structural, luminescent and in vitro studies of europium‐doped soda lime phosphate glasses

Priya,

Kaur,

Attri

et al. 2023

Luminescence

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In this article, we have reported the effect of varying concentration of europium (Eu) in (50 − x)% P2O5–25% Na2O–24% CaO–% Eu2O3, where x = 1, 3, 5. The glass samples were synthesised via conventional melt‐quench method. The impact of europium ion (Eu3+) on the structural, optical and luminescent properties of phosphate soda lime glasses has been studied using X‐ray diffraction (XRD), Fourier‐transformed infrared (FTIR) spectroscopy, ultraviolet‐visible spectroscopy, scanning electron microscopy coupled with energy‐dispersive spectroscopy and photoluminescent techniques. The amorphous nature of glass samples was confirmed by XRD patterns. FTIR confirmed the presence of various functional groups. The emission spectra of synthesised samples exhibited intense emission peaks corresponding to Eu3+ under excitation at 393 nm. Among all the peaks, the maximum intensity was observed for 5D0 → 7F2 transition. Judd–Ofelt (J–O) parameters (Ω2, Ω4) and other radiative parameters such as band width, radiative transition probabilities, stimulated emission cross‐sections and branching ratio were determined from emission spectra. The other photometric parameters such as CIE coordinates and colour purity were also determined. Furthermore, cytotoxic studies were carried out on normal cell line human embryonic kidney cells (HEK‐293) using MTT assay. Results showed that the prepared samples significantly enhanced growth in glass sample‐treated cells as compared to control cells. These findings suggest that synthesised glass samples are biocompatible in nature and have potential for applications in display devices and biomedical research area.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structural, luminescent and in vitro studies of europium‐doped soda lime phosphate glasses

Priya,

Kaur,

Attri

et al. 2023

Luminescence

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“…1. Besides, the product has two typical amorphous halo, like the other borate glasses shown in the literature [23,24]. ICP-MS was used to determine the atomic ratio of Pb:B in the product.…”

Section: Resultsmentioning

confidence: 99%

Developing of buffer-precipitation method for lead metaborate (Pb(BO₂)₂ H₂O) nanostructures

Bülbül

Beyaz

2020

Materials Science-Poland

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Amorphous lead metaborate (Pb(BO2)2 H2O) nanostructures were synthesized by a simpl and cost-effective synthesis method which is based on precipitation of lead ions using boric acid/sodium hydroxide buffer (pH 9.2) in the presence of polyethylene glycol (PEG). Scanning electron microscopy images showed that the average particle size is 30±9 nm and the particle shape is mostly spherical. The chemical formulation of Pb(BO2)2 H2O was confirmed by infrared spectroscopy, inductively coupled plasma and thermal gravimetric analysis (TGA). The percentage of PEG molecules on the particle surface equal to 2.5 % was determined by TGA. Optical reflectance measurement was performed by UV-Vis spectroscopy. Based on the Kubelka-Munk function, it was calculated that the Pb(BO2)2 H2O nanostructures have a direct band gap of 4.6 eV.

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“…Furthermore, doping such substances with rare-earth (Re 3+ ) ions enhances their optical and electronic properties, good stability, and flexibility characteristics, allowing an intake of elements in their formulation to be accepted. While also lasers, solid-phase lighting systems, fiber amplification, photodetectors, storage systems, dosimeters, and renewable power their uses are advancing [2,[12][13][14][15][16][17]. Moreover, trivalent rare-earth (Re 3+ ) ions in glasses contain a substantial percentage of absorption bands in the Vis-NIR areas, making them useful as practical photonic elements for various purposes.…”

Section: Introductionmentioning

confidence: 99%

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

et al. 2022

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Herein, this study intends to reveal the impact of gamma irradiation on the structural, linear, and nonlinear optical characteristics of 47P2O5−23Na2O−6Al2O3−22PbO−0.5Er2O3−1.5Yb2O3 glass. The Er/Yb-doped lead phosphate glass samples were produced using the traditional melt quenching procedure and then treated to different doses of gamma irradiation (0, 20, 50, and 100) kGy. The amorphous phase structure of the Er/Yb-doped lead phosphate glass samples was verified through XRD patterns. Also, the shift of the FTIR peaks due to the change in bond angles, and the change in the bond length of the P–O–P bridges means the glass network stability against radiation. With increasing irradiation dosages, the energy gap dropped from 4.11 eV to 3.42 eV and then enhanced to 3.48 at 100 kGy. At the same time, the Urbach energy enhanced from 10.23 eV to 37.03 eV. The oscillator energy Eo was found between 1.55 and 1.62 eV. Also, the dispersion energy Ed varied between 2.11 eV at 100 kGy and 2.71 eV at the dose of 50 kGy. The percentage of free carrier ions to effective mass (N/m*) is in the range (4.82–8.66) × 1047 cm3/g. Besides, the lattice dielectric constant ($${\varepsilon }_{l}$$ ε l ) increased from 5.54 to 6.63 as the gamma dosages increased. Furthermore, increasing gamma doses up to 50 kGy promotes susceptibility, which subsequently declines at 100 kGy, suggesting that increasing gamma doses over 50 kGy weakens polarizability potential. While the increasing gamma doses up to 50 kGy reduces the nonlinear refractive index and then improves at 100 kGy. Overall, the nonlinear and linear research revealed that Er/Yb lead phosphate glass is being used as a promising material for gain media and optical amplifiers.

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Studies on structural, optical and spectral properties of Europium oxide doped phosphate glasses

Cited by 35 publications

References 13 publications

Structural, luminescent and in vitro studies of europium‐doped soda lime phosphate glasses

Structural, luminescent and in vitro studies of europium‐doped soda lime phosphate glasses

Developing of buffer-precipitation method for lead metaborate (Pb(BO₂)₂ H₂O) nanostructures

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

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Studies on structural, optical and spectral properties of Europium oxide doped phosphate glasses

Cited by 35 publications

References 13 publications

Structural, luminescent and in vitro studies of europium‐doped soda lime phosphate glasses

Structural, luminescent and in vitro studies of europium‐doped soda lime phosphate glasses

Developing of buffer-precipitation method for lead metaborate (Pb(BO2)2 H2O) nanostructures

Enhanced linear and nonlinear optical properties of erbium/ytterbium lead phosphate glass by gamma irradiation for optoelectronics applications

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Developing of buffer-precipitation method for lead metaborate (Pb(BO₂)₂ H₂O) nanostructures