与Sm和Cu联合合的四氧化玻璃的结构和光谱研究
B V Padlyak1,2, I I Kindrat2, V T Adamiv1
1Ivan Franko National University of Lviv, Vlokh Institute of Physical Optics, 23 Dragomanov Str., 79-005 Lviv, Ukraine.
Physical chemistry chemical physics : PCCP
|August 7, 2024
概括
这项研究调查了四酸盐玻璃与铜-相配合的四酸盐玻璃,揭示了离子之间的能量传递机制. 这些发现揭示了光学材料的潜在应用.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 频谱学是一种光谱学.
背景情况:
- 四酸盐 (Li2B4O7) 玻璃正在探索光学应用.
- 用过渡金属和稀土元素进行兴奋剂改变了玻璃的特性.
- 了解离子相互作用对于材料设计至关重要.
研究的目的:
- 为了研究Cu-Sm联合合Li2B4O7玻璃的局部结构和光谱特性.
- 为了比较联合合玻璃与单独合玻璃.
- 为了阐明Cu和Sm离子之间的能量传递机制.
主要方法:
- 用于结构分析的X射线衍射 (XRD).
- 电子偏磁共振 (EPR) 谱学用于Cu2+离子的表征.
- 吸收UV-Vis-NIR和光发光 (PL) 光谱用于光学特性.
- 光发光激发 (PLE) 和PL衰变动力学用于能量转移研究.
主要成果:
- EPR证实了Cu2+离子的存在和轴对称性.
- 光学吸收显示了Cu2+和Sm3+离子的明显波段.
- PL光谱显示了Cu+和Sm3+离子的排放.
- 确定了从Sm3+到Cu+的能量转移以及Cu2+的再吸收.
结论:
- 与Cu和Sm一起合Li2B4O7会影响它们的光谱特性.
- 能量转移动态在联合兴奋剂系统中具有重要意义.
- 这项研究为潜在的光学应用提供了对这些离子在玻璃矩阵中的行为的见解.
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