Cr,Nd:GGG激光陶瓷原料的制备及性能研究  

Properties and Preparation of Cr,Nd:GGG Laser Ceramic Raw Materials

作　　者：姜黎黎[1] 孙晶[1] 曾繁明[1] 曹旭[1] 郭雅睿 刘景和[1] 潘柳[1] 

机构地区：[1]长春理工大学化学与环境工程学院,吉林长春130022

出　　处：《中国稀土学报》2014年第2期177-181,共5页Journal of the Chinese Society of Rare Earths

基　　金：兵器预研基金(BQ0406)资助

摘　　要：以金属硝酸盐作为原料,甘氨酸为燃烧剂,采用燃烧法制备了Cr,Nd:GGG激光陶瓷原料,并采用XRD,FT-IR,SEM,荧光光谱测试手段对前驱粉体进行了形貌和结构的表征。XRD测试结果表明,经900℃煅烧能形成较好的Cr,Nd:GGG相;FT-IR测试发现在655,614,571cm-1出现了比较尖锐的吸收峰,这是由于形成了GGG相,这和XRD测试结果一致;SEM照片显示Cr,Nd:GGG前驱体在900℃煅烧3 h得到粉体的粒子呈圆球形及类球形,分布较为均匀,直径为49.5 nm;荧光测试结果表明,Cr,Nd:GGG样品的最强荧光发射峰位于1063 nm左右,是Nd3+的4F3/2→4I11/2能级跃迁导致的荧光发射,并且相比于单掺Nd3+样品的荧光发射,双掺Cr3+,Nd3+(少量Cr3+)样品荧光强度增强,这个现象说明Cr3+-Nd3+之间存在能量传递。The Cr, Nd：GGG laser ceramic powders were prepared by combustion method using metal nitrates and glyeine as raw materials. The morphology and structure of laser ceramic raw materials were characterized by XRD, FT-IR, SEM and PFS. The XRD indicated that Cr,Nd-GGG laser ceramic raw materials were obtained at 900℃ for 3 h. The result of FT-IR showed that the absorption peaks at 655,614 and 571 cm-1 were caused by formation of GGG phase. It was consistent with the result of XRD. The SEM observation showed that Cr, Nd：GGG powders sintered at 900 ℃ was approximate spherical shape and the average diameter was about 49.5 nm. The result of fluorescence spectrum showed that the strongest fluorescence emission peak appeared at 1063 nm, which corresponded to Nd3 ＋ （4F3/2- 4I 11/2）. The intensity of the fluorescence of doped Cr3 ＋ , Nd3 ＋ was higher than that of doped Nd3 ＋ only in the powders. This phenomenon displayed that energy transfer between Cr3 ＋ -Nd3＋ is available.

关 键 词：燃烧法 甘氨酸 Cr ND GGG激光陶瓷原料 稀土 

分 类 号：O782[理学—晶体学]