Satellite Lines Due to Ion-Pairs in the Luminescence Spectra of Y_2O_2S:Eu^<3+>

概要

論文の詳細を見る
In the luminescence spectra of the ^5D_0⇾^7F_1 transition of Y_2O_2S:Eu^<3+>, satellite lines separated from the main lines by several cm^<-1> were observed. Under the excitation by 365mμ radiation, the intensity of the main line increases linearly with the concentration of Eu^<3+>, whereas that of the satellite lines increases as the 1.36th power of the concentration. When Gd^<3+> is codoped in Y_2O_2S:Eu^<3+> keeping the concentration of EU^<3+> constant, the intensity of the satellite lines relative to the main line increases with the concentration of Gd^<3+>. It is concluded that the satellite lines originate from the splitting and shift of the crystalline-field components resulting from a slight lattice distortion around a pair of Eu^<3+> ions or that of an Eu^<3+> ion and a Gd^<3+> ion which occupy two nearest cation sites.
社団法人日本物理学会の論文
1969-01-05