Photostimulated Luminescence and Radiation Hardness Properties of CsBr:(Eu2+,KOH)
Source abstract
Abstract
采用高温固相烧结法制备了KOH 掺杂的CsBr: (Eu 2+ , KOH)粉体, 通过对材料体系荧光光谱、光激励发光谱、拉曼光谱和光激励发光衰减时间等的系统研究, 深入分析了KOH对CsBr:Eu 2+ 粉体光激励发光性能和抗辐照性能的影响。研究结果表明, 掺杂引入的OH-离子增加了无辐射跃迁的几率, 随着KOH浓度的增大, CsBr:(Eu 2+ , KOH)粉体的光激励发光衰减时间逐渐缩短。同时, 由于K + 和OH-离子的共同作用, 使材料中Eu离子周围空位浓度减少, 避免了因Eu 2+ 聚集而导致的浓度淬灭, 使CsBr:(Eu 2+ ,KOH)粉体的抗辐照性能增强。
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Radiation Detection and Scintillator Technologies · Nuclear materials and radiation effects
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1. Hesse S