碳酸氢铵共沉淀法制备(Y,Gd)_2O_3: Eu~(3+)纳米材料及光谱特性
Preparation and Spectrum Characteristics of (Y,Gd)_2O_3:Eu~(3+) Nano-particles by Ammonium Bicarbonate Co-precipitation Method
查看参考文献16篇
|
文摘
|
以碳酸氢铵作沉淀剂采用共沉淀法制备了(Y,Gd)_2O_3: 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)_2O_3: 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. |
|
其他语种文摘
|
(Y, Gd)_2O_3: 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 characterize 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 ~5D_0→~7F_2 transition has the strongest peak intensity. However, the peak intensity decreased when the doping concentration of Eu~(3+) is higher than 5 mol% , which induced by the concentration quenching. |
|
来源
|
人工晶体学报
,2009,38(3):746-750 【核心库】
|
|
关键词
|
共沉淀法
;
(Y,Gd)_2O_3:Eu~(3+)纳米粒子
;
光谱特性
;
浓度猝灭
|
|
地址
|
1.
沈阳化工学院材料科学与工程学院, 辽宁, 沈阳, 110142
2.
中国科学院金属研究所, 沈阳材料科学国家(联合)实验室, 辽宁, 沈阳, 110016
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1000-985X |
|
学科
|
化学;化学工业 |
|
基金
|
辽宁省自然科学基金
;
辽宁省科技攻关项目
|
|
文献收藏号
|
CSCD:3620254
|
参考文献 共
16
共1页
|
|
1.
Duclos S J. Development of the HiLight~(TM) Scintillator for Computed Tomography Medical Imaging.
Nuclear Instruments and Methods in Physics Research A,2003,505:68-71
|
被引
7
次
|
|
|
|
|
2.
Kim Y K. Effect of Yttria Substitution on the Light Output of (Gd,Y)_2O_3:Eu Ceramic Scintillator.
Nuclear Instruments and Methods in Physics Research B,2004,225:392-396
|
被引
9
次
|
|
|
|
|
3.
Kim E J. UV and VUV Characteristics of (Y,Gd)_2O_3:Eu Phosphor particles Prepared by Spray Pyrolysis from Polymeric Precursors.
Materials Research Bulletin,2003,38:515-524
|
被引
12
次
|
|
|
|
|
4.
Zhang J Y. Luminescent Properties of Y_2O_3:Eu Synthesized by Sol-gel Processing.
Journal of Materials Processing Technology,2002,121:265-268
|
被引
8
次
|
|
|
|
|
5.
Fu Y P. Preparation and Characterization of Y_2O_3:Eu Phosphors by Combustion Process.
J Mater Sci,2007,42:5165-5169
|
被引
8
次
|
|
|
|
|
6.
Lee M H. Preparation of Eu-doped Y_2O_3 Luminescent Nanoparticles in Nonionic Reverse Microemulsions.
Journal of Colloid and Interface Science,2000,226:65-70
|
被引
13
次
|
|
|
|
|
7.
闻雷. 碳酸盐沉淀法制备Y2O3纳米粉及透明陶瓷.
中国有色金属学报,2006,16(2):235-240
|
被引
11
次
|
|
|
|
|
8.
Saito N. Fabrication of Transparent Yttria Ceramics at Low Temperature using Carbonate-derived Powder.
Journal of the American Ceramic Society,1998,81(8):2023-2028
|
被引
38
次
|
|
|
|
|
9.
李晓东. (Y，Gd)_2O3：Eu（YGO：Eu）纳米粉体合成及透明陶瓷制备.
无机材料学报,2007,22(6):1089-1094
|
被引
5
次
|
|
|
|
|
10.
Rhodes W H.
A United States Patent,3878280,1975
|
被引
1
次
|
|
|
|
|
11.
张顺利. 碳酸氢铵沉淀法制备氧化钇粉体时反应条件对产物粒度的影响.
中国稀土学报,2003,21(6):643-646
|
被引
12
次
|
|
|
|
|
12.
贺伦燕. 用碳酸氢铵沉淀制备晶状碳酸钇的机理研究.
稀有金属与硬质合金,2002,30(1):1-5
|
被引
5
次
|
|
|
|
|
13.
Byeon S H. Low Temperature Crystallization and Highly Enhanced Photoluminescence of Gd_(2-x)Y_xO_3:Eu by Li Doping.
Chem.Mater,2002,14:603-608
|
被引
6
次
|
|
|
|
|
14.
Ko M G. Low Voltage Cathodoluminescence Property of Li Doped Gd2-xYxO3:Eu.
Journal of Luminescence,2003,104:215-221
|
被引
3
次
|
|
|
|
|
15.
郭易芬. （Y，Gd）_2O_3：Eu~(3＋)纳米粒子制备及光谱特性.
金属学报,2008,44(9):1149-1152
|
被引
3
次
|
|
|
|
|
16.
孙家跃.
固体发光材料,2003:160-165
|
被引
3
次
|
|
|
|
|
了解气象卫星更多信息，请访问