| 纳米级ASnO3(A=Ca,Sr,Ba):Eu的光谱研究 |
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| 引用本文： | 付晓燕,牛淑云,张洪武,辛勤.纳米级ASnO3(A=Ca,Sr,Ba):Eu的光谱研究[J].光谱学与光谱分析,2007,27(9):1894-1897. |
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| 作者姓名： | 付晓燕 牛淑云 张洪武 辛勤 |
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| 作者单位： | 1. 辽宁师范大学化学化工学院,辽宁,大连,116029
2. 中国科学院大连化学物理研究所,辽宁,大连,116023 |
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| 摘 要： | 采用络合溶胶-凝胶法制备出系列纳米级发光材料ASnO3(A=Ca,Sr,Ba): 1%Eu.并采用X射线衍射(XRD)、紫外光谱(UV-Vis)、透射电镜(TEM)、荧光光谱(PL)对所制备的纳米发光粉体进行表征.结果表明:所合成的物质均为具有确定结构的单一物相,并从结构上分析了其发光性质随碱土金属离子半径变化而变化的规律.
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| 关 键 词： | 纳米 ASnO3:Eu 发光 |
| 文章编号： | 1000-0593（2007）09-1894-04 |
| 修稿时间： | 2006-04-26 |
Structure and Photoluminescence of ASnO3 (A=Ca, Sr and Ba): Eu Nanocrystalline |
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| FU Xiao-yan,NIU Shu-yun,ZHANG Hong-wu,XIN Qin.Structure and Photoluminescence of ASnO3 (A=Ca, Sr and Ba): Eu Nanocrystalline[J].Spectroscopy and Spectral Analysis,2007,27(9):1894-1897. |
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| Authors: | FU Xiao-yan NIU Shu-yun ZHANG Hong-wu XIN Qin |
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| Institution: | 1. College of Chemistry and Chemical Engineering of Liaoning Normal University, Dalian 116029, China; 2. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China |
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| Abstract: | The present paper reports the photoluminescence properties of nanocrytalline ASnO3 (A = Ca, Sr and Ba) : 1% Eu phosphor synthesized by the Pechini-type sol-gel method. The powder was characterized by X-ray diffraction (XRD), UV-Vis absorption spectra, transmission electron microscopy (TEM) and photoluminescence measurements. The experimental results show that BaSnO3 has the ideal cubic peroskite structure, while SrSnO3 and CaSnO3 are both distorted from cubic symmetry by an octahedral tilting distortion. The difference of structure in induced the different spectral properties of ASnO3 : 1% Eu. On the other hand, when A2+ changes from Ca2+ to Ba2+, the luminescence intensity becomes weak. So CaSnO3 : 1% Eu seems to be a good candidate for new phosphors. |
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