Alsaif Norah A M, Alfryyan Nada, Al-Ghamdi Hanan, Abdelghany A M, Abouhaswa A S, Kadhim Abed Jawad, Kaky Kawa M, Rammah Y S
Department of Physics, College of Science, Princess Nourah Bint Abdulrahman University, P.O. Box 84428, Riyadh, 11671, Saudi Arabia.
Spectroscopy Department, Physics Research Institute, National Research Centre, 33 ElBehouth St., Dokki, Giza, 12311, Egypt.
Sci Rep. 2024 Dec 23;14(1):30587. doi: 10.1038/s41598-024-76348-3.
Barium fluoride borosilicate glass samples reinforced with varying amounts of GdO (BSBLG0-BSBLG4) have been manufactured using the conventional melt quenching procedure in order to provide additional research on the type of borosilicate glass. Structural, physical, and linear optical characteristics as well as γ-ray attenuation capacity of barium fluoride borosilicate doped with GdO was investigated. X-ray diffraction pattern proving the amorphous nature of the glass samples due to the absence of a distinctive crystalline characteristic peak. The density (ρ) slightly increased from 2.74 g/cm to 2.91 g/cm and the molar volume (V) ranged from 31.27 cm/mol to 31.49 cm/mol with increasing GdO substitution ratio. The UV-Vis absorption spectra revealed a considerable increase in the absorbance of the glass samples in the visible and ultraviolet wavelength range and the UV absorption edge shifted to a higher wavelength as the GdO substitution ratio increased. The direct optical gap (E) ranged from 3.40 eV to 3.21 eV, while the indirect values dropped from 2.88 eV to 2.74 eV. The values of Urbach's energy (E) increased from 0.35 eV to 0.38 eV. The dispersion and indices of refraction were significantly impacted by GdO concentration. Real (ε) and imaginary (ε) parts of optical dielectric constants improved as the ratio of Gd ions increased. Mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), and effective atomic number (Z) parameters were increased as GdO content increased in the glass networks. Half-value layer (HVL) and mean free path (MFP) followed the order: BSBLG0 > BSBLG1 > BSBLG2 > BSBLG3 > BSBLG4. Results concluded that the suggested glasses cab be applied in opt-electronic devices and radiation shielding applications.
为了对硼硅酸盐玻璃类型进行更多研究，采用传统的熔体淬火工艺制备了添加不同含量氧化钆（BSBLG0 - BSBLG4）的氟化钡硼硅酸盐玻璃样品。研究了掺杂氧化钆的氟化钡硼硅酸盐的结构、物理、线性光学特性以及γ射线衰减能力。X射线衍射图谱表明，由于没有明显的晶体特征峰，玻璃样品具有非晶态性质。随着氧化钆取代率的增加，密度（ρ）从2.74 g/cm³ 略有增加至2.91 g/cm³，摩尔体积（V）在31.27 cm³/mol至31.49 cm³/mol之间变化。紫外 - 可见吸收光谱显示，随着氧化钆取代率的增加，玻璃样品在可见光和紫外波长范围内的吸光度显著增加，紫外吸收边缘向更高波长移动。直接光学带隙（E）在3.40 eV至3.21 eV之间，而间接值从2.88 eV降至2.74 eV。乌尔巴赫能量（E）的值从0.35 eV增加到0.38 eV。氧化钆浓度对色散和折射率有显著影响。随着钆离子比例的增加，光学介电常数的实部（ε）和虚部（ε）均有所提高。随着玻璃网络中氧化钆含量的增加，质量衰减系数（MAC）、线性衰减系数（LAC）和有效原子序数（Z）参数均增加。半价层（HVL）和平均自由程（MFP）的顺序为：BSBLG0＞BSBLG1＞BSBLG2＞BSBLG3＞BSBLG4。结果表明，所建议的玻璃可应用于光电器件和辐射屏蔽应用。
