Pr3+-Doped Strontium–Aluminum–Bismuth–Borate Glasses for Laser Applications

Naidu, M. Dhamodhara; Ratnakaram, Y.C.

doi:10.1007/s10812-019-00880-8

Cited by 10 publications

(4 citation statements)

References 26 publications

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“…This confirms that the incorporation of Pb ions with the tetrahedral oxidation states that filled the interstices which led to the increment of the Packing density (V t ) values and number of bonds per unit volume n b (calculated using bond compression model [41]) and decreased the average atomic ring size (l), confirming the increase in bridging oxygens. The results are in accordance with the increase in the theoretically obtained elastic moduli that represented in Tables 3 and 4, indicating the increased rigidity of the glass system with increasing Pb ions from 3 to 10 mol percentage content [48][49][50]. A comparison between the experimental elastic bulk modulus (K Exp.…”

Section: Ultrasonic and Mechanical Characterizationsupporting

confidence: 88%

Ultrasonic waves, mechanical properties and radiation shielding competence of Er3+ doped lead borate glasses: experimental and theoretical investigations

et al. 2021

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Kinetic, mechanical properties of xPbO-(10-x)Er 2 O 3 -90Bi 2 O 3 : x = 3 (BEP-3), 5 (BEP-5), 7 (BEP-7), 9 (BEP-9), and 10 (BEP-10) mol% glass system were investigated experimentally utilizing the pulse-echo technique and theoretically via bond compression and Makishima and Mackenzie models. Radiation shielding capacity of the investigated BEP-glasses was also evaluated via Phy-X/PSD code. The longitudinal and shear ultrasonic wave velocities were increased with the increase in PbO content in BEPglasses. Values of the elastic moduli, longitudinal modulus, shear modulus, bulk modulus, and microhardness, for BEP-glasses were enhanced when the PbO content increased from 3 to 10 mol % content. There was good agreement between the obtained values of experimental and theoretical values of elastic moduli. The maximum mass attenuation coefficient

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Section: Ultrasonic and Mechanical Characterizationsupporting

confidence: 88%

Ultrasonic waves, mechanical properties and radiation shielding competence of Er3+ doped lead borate glasses: experimental and theoretical investigations

et al. 2021

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“…Figure 3a displays Tauc's plot and Figure 3b

ln\alpha

versus photon energy, from which the Urbach energy was evaluated by calculating the reciprocal of the slope of the linear component [7, 17–19, 21].…”

Section: Resultsmentioning

confidence: 99%

“…Lately, rare earth (RE)-doped glass have gained significant consideration and are used in vast commercial applications. They are employed to develop advanced lasers and optical devices [13][14][15][16][17][18] due to their unique photoluminescence properties [1,[19][20][21]. They are commonly utilized to investigate the structural changes in a glass host due to their distinctive properties emanating from the optical transitions in their unfilled 4f shell [22].…”

mentioning

confidence: 99%

Structural, photoluminescence, and optical characteristics of a Sm³⁺‐doped lead borate–strontium–tungsten glass system: Evaluation of Judd–Ofelt intensity parameters and radiative properties

Kotb,

Okasha,

Zidan

et al. 2024

Luminescence

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In this study, the melt quenching approach is used to synthesize a lead borate–strontium‐based glass system doped with samarium ions. Modifications in the glass network structure arising from the addition of various concentrations of Sm3+ ions were investigated via Fourier transform infrared (FTIR) spectroscopy. FTIR analysis revealed B–O–B bridges, BO3, and BO4 units are present. UV–vis–NIR spectroscopic measurement was performed to study the optical absorption spectra. Optical constants such as optical bandgap energies, refractive indices, and other related parameters were evaluated. The lifetime fluorescence decay was measured and ranged between 1.04 and 1.88 ns. The photoluminescence spectra in the range 500–750 nm revealed four transitions from the ground state 6G5/2 to the excited states 6H5/2, 6H7/2, 6H9/2 and 6H11/2 and J–O theory was utilized to study these optical transitions for Sm3+ ions. Calculations of the oscillator strengths and J–O intensity parameters were performed and the obtained J–O parameters followed the sequence Ω4 > Ω6 > Ω2. The ratio O/R indicated a high lattice asymmetry around the samarium ions. The values of lifetimes and branching ratios for the fabricated samples emphasized their suitability to be used in laser applications. The current glass samples are good candidates for orange and red emission devices.

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“…PbO has dual role in the structure of glasses, one as a glass modifier (if Pb–O is ionic) and the other as glass former (if Pb–O is covalent) 5 . In a previous study 4 , 6 , it has been reported that Bi 3+ ions can be present in the glass structure as three [BiO 3 ]—or six [BiO 6 ]-coordinated, existing separately or in the mixture. Meanwhile, Pb 2+ ions can be present as three [PbO 3 ]—or four [PbO 4 ]—coordinated.…”

Section: Introductionmentioning

confidence: 99%

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

Abd El-Moneim,

Azooz,

Hashem

et al. 2023

Sci Rep

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Cadmium lead bismuthate glasses in the system xCdO–(1−x)[0.5PbO + 0.5Bi2O3](40 mol% ≤ x ≤ 90 mol%) were successfully prepared by melt-quenching method. The structural and elastic properties have been investigated using XRD, FTIR and ultrasonic pulse–echo techniques. The XRD patterns confirmed the amorphous nature of the samples prepared. Density and ultrasonic velocity data were used to evaluate various elastic properties. Addition of CdO gave rise to decreased density and molar volume and increased elastic moduli, micro-hardness, and Debye temperature. The FTIR analysis revealed that increasing CdO content enhances the BiO6 octahedral sites at the expense of the BiO3 and PbO4 units. This results in the formation of Pb–O–Bi(6) and Bi(3)–O–Bi(6) linkages in the glass network, which stiffen the structure and improve the elastic properties. A correlation between elastic and compositional parameters was achieved on the basis of theories and approaches in the field.

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Pr3+-Doped Strontium–Aluminum–Bismuth–Borate Glasses for Laser Applications

Cited by 10 publications

References 26 publications

Ultrasonic waves, mechanical properties and radiation shielding competence of Er3+ doped lead borate glasses: experimental and theoretical investigations

Ultrasonic waves, mechanical properties and radiation shielding competence of Er3+ doped lead borate glasses: experimental and theoretical investigations

Structural, photoluminescence, and optical characteristics of a Sm³⁺‐doped lead borate–strontium–tungsten glass system: Evaluation of Judd–Ofelt intensity parameters and radiative properties

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

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Pr3+-Doped Strontium–Aluminum–Bismuth–Borate Glasses for Laser Applications

Cited by 10 publications

References 26 publications

Ultrasonic waves, mechanical properties and radiation shielding competence of Er3+ doped lead borate glasses: experimental and theoretical investigations

Ultrasonic waves, mechanical properties and radiation shielding competence of Er3+ doped lead borate glasses: experimental and theoretical investigations

Structural, photoluminescence, and optical characteristics of a Sm3+‐doped lead borate–strontium–tungsten glass system: Evaluation of Judd–Ofelt intensity parameters and radiative properties

XRD, FTIR and ultrasonic investigations of cadmium lead bismuthate glasses

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Structural, photoluminescence, and optical characteristics of a Sm³⁺‐doped lead borate–strontium–tungsten glass system: Evaluation of Judd–Ofelt intensity parameters and radiative properties