| CaAl2O4:Eu2+,Nd3+纳米粉体的合成与发光性质 |
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| 引用本文： | 张希艳,姜薇薇,刘学,卢利平,王晓春,柏朝晖,刘全生,曹志峰.CaAl2O4:Eu2+,Nd3+纳米粉体的合成与发光性质[J].光谱学与光谱分析,2005,25(10):1560-1563. |
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| 作者姓名： | 张希艳 姜薇薇 刘学 卢利平 王晓春 柏朝晖 刘全生 曹志峰 |
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| 作者单位： | 长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022;长春理工大学材料与化工学院,吉林,长春,130022 |
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| 基金项目： | 吉林省自然科学基金资助项目,兵器预研支撑基金资助项目 |
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| 摘 要： | 采用溶胶-凝胶法制备了CaAlO4：Eu^2＋，Nd^3＋纳米粉体发光材料。利用DTA，TG，XRD，SEM，光谱分析等手段对样品进行了结构和性能分析。实验结果表明，800℃烧结的样品形成已CaAl2O4晶相，样品平均晶粒尺寸为20～40nm，与CaAlO4：Eu^2＋，Nd^3＋粗晶材料相比，样品的发光光谱发生了“蓝移”，热释光峰值向高温移动了96℃，且曲线形状变宽，发光衰减是由初始的快衰减和随后的慢衰减构成，发光余辉时间5h。
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| 关 键 词： | CaAl2O4:Eu2+ Nd3+ 纳米粉体 溶胶-凝胶法 长余辉发光 |
| 文章编号： | 1000-0593（2005）10-1560-04 |
| 收稿时间： | 2004-06-02 |
| 修稿时间： | 2004-10-17 |
Preparation and Characterization of CaAl2O4 :Eu2+ , Nd3 + Nanoparticles |
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| ZHANG Xi-yan,JIANG Wei-wei,LIU Xue,LU Li-ping,WANG Xiao-chun,BAI Zhao-hui,LIU Quan-sheng,CAO Zhi-feng.Preparation and Characterization of CaAl2O4 :Eu2+ , Nd3 + Nanoparticles[J].Spectroscopy and Spectral Analysis,2005,25(10):1560-1563. |
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| Authors: | ZHANG Xi-yan JIANG Wei-wei LIU Xue LU Li-ping WANG Xiao-chun BAI Zhao-hui LIU Quan-sheng CAO Zhi-feng |
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| Institution: | School of Materials and Chemical Engineering, Changchun University of Science and Technology, Changchun 130022, China |
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| Abstract: | Long persistent phosphoresceoce CaAl2O4:Eu2+, Nd3+ nanoparticles were synthesized through sol-gel method. The structures and properties of the samples were analyzed by DTA, TGA, XRD, TEM and spectrometer. Results indicated that the CaAl2O4 crystalline phase was formed at 800 degrees C. The particles are spherical in shape and about 20-40 nm in size. The peaks of the excitation, emission and thermoluminescence spectra shift compared with the CaAl2O4: Eu2+,Nd3+ coarse crystals. The luminescence decay includes a initial rapid part and a following slow part. The decay time lasts for about 5 h. |
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| Keywords: | CaAl_2O_4:Eu~(2+) Nd~(3+) Nano-particles Sol-gel method Phosphorescence |
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