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Yb:YVO_4多晶粉体的合成与性能表征
作者:张学建 张莹 孙晶 宁纪奎 吕灼菲 李轶 张寒贫 刘景和  
单位:吉林建筑工程学院 长春理工大学 长春理工大学 长春理工大学 长春理工大学 长春理工大学 长春理工大学 长春理工大学 长春130021 长春理工大学 长春130022 长春130022 长春130022 长春130022 长春130022 长春130022 长春130022 长春130022 
关键词:掺镱钒酸钇  液相共沉淀法  多晶料制备  性能表征 
分类号:TB383.3
出版年,卷(期):页码:2008,36(2):242-245
DOI:
摘要:

采用液相共沉淀法合成了Yb:YVO_4多晶粉体。利用X射线衍射、热重-差热分析、扫描电镜、红外光谱、荧光光谱测试手段,对前驱体及煅烧粉体的结构、形貌及光谱性能进行了研究。结果表明:粉末样品的衍射峰的分布和相对强度与标准YVO_4的基本一致。热重分析表明,1000℃煅烧时,Yb:YVO_4粉体总质量损失为13.59%,随着煅烧温度的提高,前驱粉体颗粒尺寸不断增加。800℃煅烧后的粉体为纳米级Yb:YVO_4纯相粉体,1000℃煅烧后的粉体粒度约170nm、粒径均匀、分散性和流动性好。荧光光谱表明:主要发射峰位于1 025.76nm,是Yb~(3+)的基态~2F_(7/2)与激发态~2F_(5/2)能级跃迁导致的荧光发射。

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Yb:YVO_4 polycrystal raw materials were synthesized by the liquid phase coprecipitation method.The structure,morphol- ogy and spectral properties of both the precursor and calcined powder were investigated by the of X-ray diffraction,thermogravim- etry-differential thermal analysis,scanning electron microscopy,infrared and fluorescence emission spectra.The results show that the distribution of diffraction peaks and relative intensity of the powder samples are very similar to those of the standard sample YVO_4. The total mass loss of Yb:YVO_4 powder is 13.59% at 1 000℃.The grain size of powder increases continuously with the increase of calcining temperature.The pure phase Yb:YVO_4 powder with nano-particle size can be formed after calcined at 800℃.The powder calcined at 1000℃has the particle siz of about 170 nm with small and even grain sizes,and is better pure phase,better dispersibility and fluidity.The analysis results of the fluorescence spectra show that the main emission peak exists at 1 025.76nm owing to the tran- sition of Yb~(3+)from the excited state ~2F_(5/2)to the ground state ~2F_(7/2).

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参考文献:

[1]李敢生,吴喜泉,位民,等.大尺寸优质钒酸钇(YVO_4)双折射晶体生长[J].人工晶体学报,1999,28(1):27-29.LI Gansheng,WU Xiquan,WEI Min,et al.J Synth Cryst(in Chinese), 1999,28(1):27-29. [2]诸月梅,林博,熊建华,等.双折射晶体原料合成及最佳制备工艺的探讨[J].人工晶体学报,2001,30(1):72-74.ZHU Xuemei,LIN Bo,XIONG Jianhua,et al.J Synth Cryst(in Chi- nese),2001,30(1):72-74. [3]CHEN Y F.Compact efficient all-solid-state eye-safe laser with self-frequency Raman conversion in a Nd:YVO_4 crystal[J].Opt Lett, 2004,29(18):2 172-2 174. [4]王英伟,程灏波,刘景和,等.YVO_4双折射晶体生长及完整性分析[J].人工晶体学报,2003,32(1):41-43.WANG Ymgwei,CHENG Haobo,LIU Jinghe,et al.J Synth Cryst(in Chinese),2003,32(1):41-43. [5]林树坤,李黎婷,陈建中.双折射晶体YVO_4原料的合成与表征叫.光谱学与光谱分析,2003,23(3):474-476.LIN Shukun,LI Liqing,CHEN Jianzhong.Spectrosc Spectral Anal(in Chinese),2003,23(3):474-476. [6]REINBERG A R,RISEBERG L A,BROWN R M,et al.GaAs:Si LED pumped Yb-doped YAG laser[J].Appl Phys Lett,1971,19(1):11-13.

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