稀土离子掺杂对人工翡翠宝石荧光性质的影响  

FLUORESCENCE OF RARE EARTH IONS IN SYNTHETIC JADEITE GEM

作　　者：苏文辉[1] 陈久华[1] 千正男[1] 武士学[2] 马贤锋[2] 阎学伟[2] 

机构地区：[1]吉林大学稀土固体物理研究室 [2]中国科学院长春应用化学研究所

出　　处：《中国稀土学报》1989年第2期59-62,共4页Journal of the Chinese Society of Rare Earths

基　　金：国家自然科学基金

摘　　要：在具有翡翠成份的原料中掺入0.01～0.1mol的Eu_2O_3、Dy_2O_3、CeO_2,经商温高压合成,分别茯得可发红、黄、紫色可见荧光的翡翠宝石。由于翡翠非对称晶场的作用,Eu^(3+)的电偶极跃迁~5D_0→~7F_2成为发光主峰,Dy^(3+)的发光峰出现明显劈裂,增大Ce^(3+)的掺杂量,出现浓度猝灭现象。A jadeite gem having visible emission (red, yellow, violet) has been synthesized by doping Eu_2O_3, Dy_2O_3, CeO_2 of 0.01-0.1 mol under high pressure and high temperature. Their emission spectra were determined. Because of the non-symmetry crystal field in jadeite, the electric dipole transition ~5D_0→~7F_2 of Eu^(3+) becomes major emission; and the luminescence peaks of Dy^(3+) split. With the increasing of the amount of Ce^(3+), the concentration quenching effect occurs.

关 键 词：稀土离子 人造宝石 翡翠宝石 荧光 

分 类 号：TQ164.6[化学工程—高温制品工业]