Self-reduction of Eu3+ to Eu2+ in europium-doped Li2B4O7 glass prepared in air
Self-reduction of Eu3+ to Eu2+ in europium-doped Li2B4O7 glass prepared in air
复制标题
空气中制备的掺铕Li2B4O7玻璃中Eu3自还原为Eu2
DOI：
10.1111/jace.17012
复制
发表时间：
2020
影响因子：
3.9
通讯作者：
Guo Hai
中科院分区：
文献类型：
--
作者：
Sun Xin-Yuan;Le Xian-Chao;Xiao Zhuohao;Shi Xuhai;Wang Wen-Feng;Hu Zuofu;Yang Qing-Mei;Wei Rongfei;Guo Hai
受中子检测的启发，开发了富含锂和硼元素且具有高横截面捕获的铕掺杂 Li2B4O7 玻璃。揭示了一种在空气中高温熔融淬火技术制备的掺铕Li2B4O7玻璃中实现Eu3+自还原为Eu2+离子的高效方法。通过在 2 mol% 浓度范围内用 BN 部分取代 B2O3，可以轻松实现 Eu3+ 到 Eu2+ 离子的自还原。并通过透射率、光致发光、放射发光光谱以及发光衰减曲线，系统研究了BN部分替代B2O3对铕掺杂Li2B4O7玻璃光学性能的影响。
Motivated by the detection of neutrons, europium‐doped Li2B4O7glasses enriched with both lithium and boron elements with high cross‐section capture were developed. A highly effective method of realizing the self‐reduction of Eu3+to Eu2+ions in europium‐doped Li2B4O7glasses prepared by high temperature melt‐quenching technology in air was revealed. The self‐reduction of Eu3+to Eu2+ions can be easily achieved by the partial replacement of B2O3with BN within 2 mol% concentration. And the effect of partially replacing B2O3with BN on the optical properties of europium‐doped Li2B4O7glass are systematically studied by transmittance, photoluminescence, and radioluminescence spectra, together with the luminescence decay curves.