| 碳酸氢铵共沉淀法制备（Y,Gd）2O3：Eu^3＋纳米材料及光谱特性 |
| 其他题名 | Preparation and Spectrum Characteristics of （Y, Gd）2O3：Eu^3＋ Nano-particles by Ammonium Bicarbonate Co-precipitation Method
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| 郭易芬; 马伟民; 闻雷; 沈世妃; 王华栋; 尹凯
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| 2009
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| 发表期刊 | 人工晶体学报
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| ISSN | 1000-985X
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| 卷号 | 38.0期号:003页码:746-750 |
| 摘要 | 以碳酸氢铵作沉淀剂采用共沉淀法制备了（Y,Gd）2O3∶Eu^3＋纳米粉体。用FT-IR、DTA/TG、XRD和SEM对样品进行了表征,并用荧光光度计分析了样品的发射光谱。结果表明：碳酸氢铵为沉淀剂,先驱沉淀物经150℃干燥,800℃煅烧保温2 h时,合成了近似球形、粒径均匀、约为15-20 nm、分散性好的（Y,Gd）2O3∶Eu^3＋纳米粒子。随着掺入Eu^3＋浓度的增加,发射峰强升高;当掺入5 mol%的Eu^3＋时,峰强最大;当Eu^3＋的含量高于5 mol%时出现了浓度猝灭,峰强反而降低。 |
| 其他摘要 | （Y, Gd）2O3：Eu^3＋ nanopowders were prepared by co-precipitation method using ammonium bicarbonate as precipitating agent. FT-IR, XRD, TEM, SEM, DTA/TG and SEM were used to charaeterize the samples. The emission spectrums of the samples were analyzed by the fluor-photometer. The results show that the powders are approximately spherical particles with even particle size of about 15-20 nm and good dispersivity under calcining at 800 ℃ for 2 h and drying at 150 ℃. With the increasing of Eu^3＋ concentration, the peak intensity enhanced. When the concentration of Eu^3＋ is 5 mol%, the emission peak of ^5D0→^7F2 transition has the strongest peak intensity. However, the peak intensity decreased when the doping concentration of Eu^3＋ is higher than 5 tool%, which induced by the concentration quenching. |
| 关键词 | 共沉淀法
（Y,Gd）2O3：Eu^3＋纳米粒子
光谱特性
浓度猝灭
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| 收录类别 | CSCD
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| 语种 | 中文
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| CSCD记录号 | CSCD:3620254
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.imr.ac.cn/handle/321006/156717
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| 专题 | 中国科学院金属研究所
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| 作者单位 | 中国科学院金属研究所
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推荐引用方式
GB/T 7714 |
郭易芬,马伟民,闻雷,等. 碳酸氢铵共沉淀法制备（Y,Gd）2O3：Eu^3＋纳米材料及光谱特性[J]. 人工晶体学报,2009,38.0(003):746-750.
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| APA |
郭易芬,马伟民,闻雷,沈世妃,王华栋,&尹凯.(2009).碳酸氢铵共沉淀法制备（Y,Gd）2O3：Eu^3＋纳米材料及光谱特性.人工晶体学报,38.0(003),746-750.
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| MLA |
郭易芬,et al."碳酸氢铵共沉淀法制备（Y,Gd）2O3：Eu^3＋纳米材料及光谱特性".人工晶体学报 38.0.003(2009):746-750.
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