An investigation on physical, structural and gamma ray shielding features of Dy3+ ions doped Telluroborate glasses

Sathiyapriya, G.; Marimuthu, K.; Sayyed, M.I.; Aşkın, A.; Ağar, O.

doi:10.1016/j.jnoncrysol.2019.119574

Cited by 35 publications

(3 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The E g values were determined from Figure 5. Extrapolation of (αhν) 2 and (αhν) 1/2 to meet x-axes (hν) gives direct and indirect allowed The relationship for the absorption edge in the lower absorption region is given by Urbach [45] for glass matrix as…”

Section: Optical Bandgapmentioning

confidence: 99%

Structural and spectroscopic investigations of neodymium‐doped strontium borophosphate glass

et al. 2021

View full text Add to dashboard Cite

Neodymium-doped glass finds application in lasers with high energy and low pulse width. In the present study, a series of Nd 3+ ions (0-2 mol%)-doped strontium borophosphate (SBP) glass samples was prepared through the conventional melt quench method. A broad peak in the X-ray diffraction spectrum confirmed the formation of a single-phase amorphous borophosphate glass. Fourier transform infrared spectra of the doped and undoped glass samples indicated the presence of borate and phosphate groups that form the anionic network. The thermal properties of the glass samples were determined from thermogravimetry/differential thermal analysis.Photoluminescence and ultraviolet-visible light techniques were used to investigate the optical properties of the as-prepared SBP:Nd glass. The Judd-Ofelt (JO) intensity parameters Ω λ (2, 4, 6), stimulated emission cross-section, branching ratios, and transition probabilities of the Nd 3+ -doped glass were obtained through the JO analysis.Characteristic Nd 3+ emission peaks were observed at 1330, 1060, and 876 nm, corresponding to the 4 F 3/2 ! 4 I S/2 (S = 13, 11, and 9) transitions, respectively. The suitability of SBP:Nd (0.5 mol%) glass for use in solid-state lasers was demonstrated by its intense luminescence, high transition probability, high emission cross-section, optical gain, and luminescence branching ratio.

show abstract

Section: Optical Bandgapmentioning

confidence: 99%

Structural and spectroscopic investigations of neodymium‐doped strontium borophosphate glass

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The glass was located between the radiation source and the detector, and the distance between the source and the detector was 15 cm. The simulation was carried out, and the recorded data has a relative error of less than 1%, as shown in the output sheets of the MCNP code [ 15 ].…”

Section: Methodsmentioning

confidence: 99%

“…Ta 2 O 5 has been found to be a modifier, in most cases, at a higher content, which exists as TaO 6 units [ 13 , 14 ]. In this case, the empty or unfilled d-orbital (outer electronic configuration 5d 0 6s 0 of Ta 5+ ions strongly contribute to the large ionic refraction (23.4) and large refractive index and polarizability [ 15 ]. These features are attractive for magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Ta2O5 Nanocrystals Strengthened Mechanical, Magnetic, and Radiation Shielding Properties of Heavy Metal Oxide Glass

2021

View full text Add to dashboard Cite

In this study, for the first time, diamagnetic 5d0 Ta5+ ions and Ta2O5 nanocrystals were utilized to enhance the structural, mechanical, magnetic, and radiation shielding of heavy metal oxide glasses. Transparent Ta2O5 nanocrystal-doped heavy metal oxide glasses were obtained, and the embedded Ta2O5 nanocrystals had sizes ranging from 20 to 30 nm. The structural analysis of the Ta2O5 nanocrystal displays the transformation from hexagonal to orthorhombic Ta2O5. Structures of doped glasses were studied through X-ray diffraction and infrared and Raman spectra, which reveal that Ta2O5 exists in highly doped glass as TaO6 octahedral units, acting as a network modifier. Ta5+ ions strengthened the network connectivity of 1–5% Ta2O5-doped glasses, but Ta5+ acted as a network modifier in a 10% doped sample and changed the frame coordination units of the glass. All Ta2O5-doped glasses exhibited improved Vicker’s hardness, magnetization (9.53 × 10−6 emu/mol), and radiation shielding behaviors (RPE% = 96–98.8%, MAC = 32.012 cm2/g, MFP = 5.02 cm, HVL = 0.0035–3.322 cm, and Zeff = 30.5) due to the increase in density and polarizability of the Ta2O5 nanocrystals.

show abstract

Eco/Friendly Polymer-Based Composites for Nuclear Shielding Applications

Akman,

Ogul,

Kaçal

et al. 2023

Advances in Material Research and Technology

View full text Add to dashboard Cite

An investigation on physical, structural and gamma ray shielding features of Dy3+ ions doped Telluroborate glasses

Cited by 35 publications

References 30 publications

Structural and spectroscopic investigations of neodymium‐doped strontium borophosphate glass

Structural and spectroscopic investigations of neodymium‐doped strontium borophosphate glass

Ta2O5 Nanocrystals Strengthened Mechanical, Magnetic, and Radiation Shielding Properties of Heavy Metal Oxide Glass

Eco/Friendly Polymer-Based Composites for Nuclear Shielding Applications

Contact Info

Product

Resources

About