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Sr2+对GdVO4晶体生长和拉曼性能的影响
引用本文:钟富兰,朱进,陈建中,庄乃锋. Sr2+对GdVO4晶体生长和拉曼性能的影响[J]. 人工晶体学报, 2006, 35(4): 795-799
作者姓名:钟富兰  朱进  陈建中  庄乃锋
作者单位:福州大学化学化工学院,福州,350002;福州大学化学化工学院,福州,350002;福州大学化学化工学院,福州,350002;福州大学化学化工学院,福州,350002
基金项目:国家自然科学基金(No.60478018)资助项目
摘    要:本文报道了Sr2+离子掺杂对GdVO4晶体生长和拉曼性能的影响.SrxGd1-xVO4晶体粉末经X射线粉末衍射分析,其结果仍属四方晶系,具有锆英石结构.实验表明,高掺杂浓度时,Sr2+离子不易取代Gd3+离子进入GdVO4晶体的晶格,易导致SrxGd1-xVO4晶体开裂和产生包裹体.XPS实验证明,SrxGd1-xVO4晶体中钒元素为+5价.同时测试了常温下SrxGd1-xVO4晶体的拉曼光谱,发现随着Sr2+离子浓度增加,在884cm-1处的VO4反对称伸缩振动逐渐增强,表明Sr2+离子的掺入影响了GdVO4晶体的拉曼性能.

关 键 词:SrxGd1-xVO4晶体  晶体生长  拉曼光谱
文章编号:1000-985X(2006)04-0795-05
收稿时间:2005-12-28
修稿时间:2005-12-28

Influence of Sr2+ on Crystal Growth and Raman Properties of GdVO4 Single Crystal
ZHONG Fu-lan,ZHU Jin,CHEN Jian-zhong,ZHUANG Nai-feng. Influence of Sr2+ on Crystal Growth and Raman Properties of GdVO4 Single Crystal[J]. Journal of Synthetic Crystals, 2006, 35(4): 795-799
Authors:ZHONG Fu-lan  ZHU Jin  CHEN Jian-zhong  ZHUANG Nai-feng
Affiliation:Institute of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350002, China
Abstract:The paper reported the influence of Sr~(2 )-doped ion on crystal growth and Raman properties of GdVO_4 single crystal.The powder of Sr_xGd_(1-x)VO_4 crystals was measured by X-ray diffraction,which showed as-grown crystals have a zircon-type structure belonging to tetragonal system.Sr~(2 ) ion substituted difficultly for Gd~(3 )when concentration is higher,which resulted in the formation of crack and inclusion in Sr_xGd_(1-x)VO_4 crystals.The XPS experiments proved that the V element of Sr_xGd_(1x)VO_4 crystals remained in the pentavalent.The Raman spectra of Sr_xGd_(1-x)VO_4 crystals were measured at room temperature.The results indicated that Sr~(2 )-doped ion strengthened the peak of VO_4 at 884cm~(-1),and influenced the Raman properties of GdVO_4 single crystal.
Keywords:Sr_xGd_(1-x)VO_4 crystals  crystal growth  Raman spectrum
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