稀土无机发光材料Ca_(1-n)Mg_nS:Cu^+,Eu^(2+)的合成与光谱特征

Synthesis and Spectra Characteristics of Ca_(1-n)_Mg_nS: Cu^+, Eu^(2+)Phosphors

报道了Cu+、Eu2+共激活的Ca1－a．Mg.S的发光性质、基质组分变化与荧光性质的关系。Cu+和Eu2+在纯CaS基质中的发射光谱分别位于430nm及630nm附近，随着基质中Mg含量的增加，红、蓝区发射峰值波长基本不变，但强度发生明显改变，当n为0．25时，红区发射强度最强。

The fluorescence of Cu+ and Eu2+coactivated Ca1-'Mgn.S was reported. The emission bands ofCu+ and Eu2+peak at 430nm and 630nm in pure CaS host,respectively,with Mg composition rising inCa1~MgnS,the wavelengths of the red and blue emission bands are fixed. But that of the intensity willchange obvinusly. When n is equal to 0. 25,the intensity of the red emission band is the strongest.