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铥镱双掺氧化钆钇透明陶瓷的制备与发光性能
作者:李剑 代雨航 朱忠丽 
单位:长春理工大学化学与环境工程学院 长春 130022 
关键词:铥-镱双掺杂 氧化钆钇 柠檬酸燃烧法 冷等静压-真空烧结法 光谱性能 
分类号:TQ133.3
出版年,卷(期):页码:2017,45(10):1474-1480
DOI:10.14062/j.issn.0454-5648.2017.10.13
摘要:

 采用柠檬酸燃烧法制备了(GdY)2O3:Tm,Yb粉体,并确定其制备工艺条件为:煅烧温度1 000 ℃,Gd3+、Tm3+、Yb3+掺杂的摩尔分数分别为20%、4%、5%。以此条件得到的粉体的平均粒径约65 nm。粉体的发射光谱表明:在980 nm激发源激发下,在484 nm处得到的蓝光,对应于Tm3+的1G4→3H6能级跃迁;在658 nm处得到的红光,对应于Tm3+的3F2→3H6能级跃迁。用制备的粉体作为原料,采用真空烧结法制备(GdY)2O3:Tm,Yb陶瓷,其烧结工艺条件为:烧结温度为1 750 ℃,保温20 h。制备的陶瓷在400~3 300 nm波长范围内的平均透过率为71%。

 

 Tm3+, Yb3+ co-doped gadolinium yttrium oxide transparent ceramic powder was prepared by a citric acid combustion method. The ceramic powder is obtained under optimum preparation condition (i.e., calcination temperature of 1 000 ℃; Gd3+ doped mole fraction of 20%; Tm3+ doped mole fraction of 4%; Yb3+ doped mole fraction of 5%), and the average particle size of (GdY)2O3:Tm,Yb powder is approximately 65 nm. The emission spectra of the powder show that the blue-ray appears at 484 nm, corresponding to the energy level transition of Tm3+ from 1G4 to 3H6, and the red light at 658 nm, corresponding to the energy level transition of Tm3+ from 3F2 to 3H6 under the excitation at wavelength of 980 nm by a pump light. The (GdY)2O3:Tm,Yb ceramic was also prepared by a vacuum sintering with the ceramic powder prepared as a raw material, and the ceramic can be obtained under the optimum sintering parameters (i.e., final temperature of sintering of 1 750 ℃, and sintering time of 20 h). It is shown that the average transmittance at 400–3 300 nm is 71%.

基金项目:
吉林省科技发展计划(20170204028GX)资助项目。
作者简介:
李 剑(1991—),男,硕士研究生。
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