含cuo硼酸盐玻璃结构、光学和屏蔽特性的成分依赖性变化

IF 2.6 3区工程技术 Q1 NUCLEAR SCIENCE & TECHNOLOGY

Nuclear Engineering and Technology Pub Date : 2025-09-22 DOI:10.1016/j.net.2025.103925

Mohammad H. Alhakami , Karam S. El-Nasser , Numa A. Althubiti , Taha Abdel Mohaymen Taha

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引用次数: 0

摘要

本文研究了熔体淬火法制备的55B2O3 - 15ZnO -(30−x)Li2O - xCuO玻璃（x = 0,2,4,8 mol%）的结构、光学和辐射屏蔽性能。XRD证实了其无定形性质。而密度和摩尔体积分析则显示出CuO掺杂的非线性趋势。FTIR分析显示Li2O被CuO取代导致了结构变化。紫外可见光谱呈现Cu2+ d-d跃迁特征（700 ~ 800 nm）。tac图显示带隙缩小（直接带隙为3.33 ~ 2.68 eV，间接带隙为2.80 ~ 2.01 eV）， Urbach能量从0.45 eV增加到0.54 eV。光致发光显示Cu2+相关发射（401 ~ 543 nm）。Makishima-Mackenzie模型预测，由于网络碎片化，弹性模量（E， K， S， L）会下降。在高原子序数（Z = 29）的驱动下，CuO在15 keV时使半值层减少了27%，在低能时使质量衰减系数（μ/ρ）增加了46%，显著提高了辐射屏蔽性能。高级参数（EBF， EABF， ACS， ECS）在4-6 mol% CuO下显示出最佳屏蔽效果，平衡了光电增强和康普顿散射抑制。这些发现将cuo掺杂硼酸盐玻璃定位为光子和辐射屏蔽应用的多功能材料，具有由Cu2+配位和网络动力学控制的可调性能。

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Composition-dependent variations in structural, optical and shielding characteristics of CuO-containing borate glasses

This study investigates the structural, optical, and radiation shielding properties of 55B₂O₃ - 15ZnO - (30−x)Li₂O - xCuO glasses (x = 0, 2, 4, 8 mol%) synthesized via melt-quenching. XRD confirmed the amorphous nature. While density and molar volume analysis revealed a non-linear trend with CuO doping. FTIR analysis revealed structural changes due to the substitution of Li₂O with CuO. UV–Vis spectra exhibited characteristic Cu²⁺ d-d transitions (700–800 nm). Tauc plots showed bandgap narrowing (direct: 3.33–2.68 eV; indirect: 2.80–2.01 eV) and Urbach energy increased from 0.45 to 0.54 eV). Photoluminescence revealed Cu²⁺-related emissions (401–543 nm). The Makishima-Mackenzie model predicted a decrease in elastic moduli (E, K, S, L) due to network fragmentation. Radiation shielding performance improved significantly, with CuO reducing the half-value layer by 27 % at 15 keV and increasing the mass attenuation coefficient (μ/ρ) by 46 % at low energies, driven by high atomic number (Z = 29). Advanced parameters (EBF, EABF, ACS, ECS) demonstrated optimal shielding at 4–6 mol% CuO, balancing photoelectric enhancement and Compton scattering suppression. These findings position CuO-doped borate glasses as multifunctional materials for photonic and radiation shielding applications, with tunable properties governed by Cu²⁺ coordination and network dynamics.

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来源期刊

Nuclear Engineering and Technology 工程技术-核科学技术

CiteScore

4.80

自引率

7.40%

发文量

431

审稿时长

3.5 months

期刊介绍： Nuclear Engineering and Technology (NET), an international journal of the Korean Nuclear Society (KNS), publishes peer-reviewed papers on original research, ideas and developments in all areas of the field of nuclear science and technology. NET bimonthly publishes original articles, reviews, and technical notes. The journal is listed in the Science Citation Index Expanded (SCIE) of Thomson Reuters. NET covers all fields for peaceful utilization of nuclear energy and radiation as follows: 1) Reactor Physics 2) Thermal Hydraulics 3) Nuclear Safety 4) Nuclear I&C 5) Nuclear Physics, Fusion, and Laser Technology 6) Nuclear Fuel Cycle and Radioactive Waste Management 7) Nuclear Fuel and Reactor Materials 8) Radiation Application 9) Radiation Protection 10) Nuclear Structural Analysis and Plant Management & Maintenance 11) Nuclear Policy, Economics, and Human Resource Development