摘要
报道了Eu^(+3)在K_2NiF_4型结构铝酸盐中的光谱性质,计算了Eu^(3+)有关能级的位置,讨论了Eu^(3+)发光与基质的结构和组成的关系,发现随着CaYAlO_4、CaGdAlO_4、SrGdAlO_4、SrLaAlO_4、SrLaAlO_4中阳离子荷径比的减小,Eu^(3+)激发光谱中电荷迁移吸收带的位置依次移向长波。
The luminescence properties of Eu3 + in aluminates with K2NiF4 structure were reported, the Eu3+ energy level positions concerned were calculated, and the relationship between the luminescence properties of Eu3 + and the structure and compositions of the matrices was discussed. It was found that the charge transition band in the excitation spectrum of Eu3 + moves toward the long wavelength with the decrease of the charge - radius ratio of the cations in CaYAO4, CaGdAO4, SrGdAO4 and SrLaAO4.
出处
《湘潭师范学院学报（自然科学版）》
2003年第2期55-58,共4页
Journal of Xiangtan Normal University (Natural Science Edition)
