摘要
本文报道 KCa F3 基质中 Eu2 +的光谱特征及浓度对 Eu2 +发光的影响并观察到 Eu2 +对 Tb3 +产生能量传递的新现象 ,详细讨论 Eu2 +在基质中的价态稳定及其转换。
L uminescence propertiesof Eu2 +and effectofdoped concentration on luminescenceof Eu2 + are reported. A new phenomemon of energy transfer from Eu2 +to Tb3 +in KCa F3 was observed. Valence stability of Eu2 +in KCa F3 is considered by susceptibility method and spectral analysis. The results show that though valence of Eu2 +in KCa F3 is stable,Eu2 +ions easily change into Eu3 +in KCa F3 in the presence of minimal water.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
1996年第2期172-177,共6页
Chinese Journal of Inorganic Chemistry
基金
国家自然科学基金资助项目
关键词
氟化钙钾
铕
光谱性质
价态稳定
calcium potassium fluoride europium(Ⅱ) spectral property valencestability
