当前位置: X-MOL 学术Radiat. Phys. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Optical and structural properties of Eu3+ doped MgO–Li2O–Na2O–BaO–B2O3 glasses for scintillating glass applications
Radiation Physics and Chemistry ( IF 2.8 ) Pub Date : 2022-06-10 , DOI: 10.1016/j.radphyschem.2022.110295
Sharvani K.N , Ganesh Prasad S , J. Kaewkhao , N. Intachai , Kothan S , Rachniyom W , Altaf Pasha , Rajaramakrishna R

The glass systems with composition of 17MgO–10Li2O-(57-X) B2O3–6BaO–10Na2O-XEu2O3 (X = 0.0(BMLNBa), 0.1(BMLNBaEu0.1), 0.3(BMLNBaEu0.3), 0.5(BMLNBaEu0.5) and 1.0(BMLNBaEu1.0) mol% were prepared and studied their optical, structural properties for scintillating applications. Density and refractive index of the glasses increases with increase in Eu2O3 content indicating close packing of glass network. IR spectra reveal signature peaks of the borate network. Photoluminescence spectra of glass systems reveals emission bands which corresponds to 5D07F0 (579 nm), 5D07F1 (590 nm), 5D07F2 (615 nm), 5D07F3 (654 nm), 5D07F4 (700 nm) transitions. The emission and excitation intensity depends on Eu3+ ions where emission wavelength was observed at 615 nm and excited wavelength at 394 nm. The highest emission intensity was observed for BMLNBaEu0.3 glass. Asymmetry ratio (IR/O) is calculated and compared with other glasses. The phonon side-band spectra are used to calculate phonon energy of the present glass system. Judd-Ofelt analysis and radiative properties have been evaluated for BMLNBaEu0.3 glass and compared with other glass compositions. Using phonon energy, the coupling strength ‘g’, host dependent parameters (α) and multi-phonon relaxation rates (WMPR/Wo) have been evaluated. Phonon coupling strength shows 0.0054, 0.0108 and 0.0546 for BMLNBaEu0.3, BMLNBaEu0.5 and BMLNBaEu1.0 glasses respectively. The results obtained indicate the glasses are potential candidates for the scintillating material applications.



中文翻译:

用于闪烁玻璃应用的 Eu3+ 掺杂 MgO–Li2O–Na2O–BaO–B2O3 玻璃的光学和结构特性

组成为17MgO–10Li 2 O-(57-X) B 2 O 3 –6BaO–10Na 2 O-XEu 2 O 3 (X = 0.0(BMLNBa), 0.1(BMLNBaEu 0.1 ), 0.3(BMLNBaEu 0.3 )的玻璃体系)、0.5(BMLNBaEu 0.5 ) 和 1.0(BMLNBaEu 1.0 ) mol% 制备并研究了它们在闪烁应用中的光学、结构特性。玻璃的密度和折射率随着 Eu 2 O 3的增加而增加含量表明玻璃网络紧密堆积。IR 光谱揭示了硼酸盐网络的特征峰。玻璃系统的光致发光光谱揭示了对应于5 D 07 F 0 (579 nm)、5 D 07 F 1 (590 nm)、5 D 07 F 2 (615 nm)、5 D 0的发射带→ 7 F 3 (654 nm), 5 D 07 F 4(700 nm) 跃迁。发射和激发强度取决于Eu 3+离子,其中发射波长为615 nm,激发波长为394 nm。BMLNBaEu 0.3玻璃的发射强度最高。计算不对称比 (I R/O ) 并与其他玻璃进行比较。声子边带光谱用于计算本玻璃系统的声子能量。对 BMLNBaEu 0.3玻璃的 Judd-Ofelt 分析和辐射特性进行了评估,并与其他玻璃组合物进行了比较。使用声子能量、耦合强度“g”、宿主相关参数 (α) 和多声子弛豫率 (W MPR /W o) 已被评估。BMLNBaEu 0.3、BMLNBaEu 0.5和 BMLNBaEu 1.0玻璃的声子耦合强度分别为 0.0054、0.0108 和 0.0546 。获得的结果表明玻璃是闪烁材料应用的潜在候选者。

更新日期:2022-06-10
down
wechat
bug