摘要
本文研究了高压下无机微孔材料的相转变,并讨论了压力对离子交换的Eu(Ⅲ)NaA和Nu(Ⅲ)NaY两种以沸石分子筛为基质的稀土发光材料发光性质的影响。实验结果表明,对于不同基质材料,压力对Eu(Ⅲ)高于的光谱结构的影响,尤其是对^(?)D_0→~7F_1磁偶极跃迁与^(?)D_0→~7F_2电偶极跃迁强度比(I_m/I_(?))的影响十分显著。对于Eu(Ⅲ)NaA样品来说,I_m/I_(?)值随压力的增加而增加,而对于Eu(Ⅲ)NaY样品,I_m/I_(?)值随压力的增加而减少。
The phase transitions of aluminosilicated microporous materials under high pressure have been investigated. The influence of pressure on the luminescence of exchanged Eu(Ⅱ)NaA and Eu(Ⅱ)NaY is discussed. Experiment shows that pressure has a notable influence on the Eu (Ⅱ) ions spectral structures. For the sample of exchanged Eu(Ⅲ)NaY, the value of I0/In decreases with increasing of pressure, and for the exchanged Eu(Ⅲ)NaA, the value of Im/I0creases with increasing of pressure. This difference is due to the different base materials.
出处
《高压物理学报》
CAS
CSCD
北大核心
1992年第4期285-290,共6页
Chinese Journal of High Pressure Physics
