| 无机基质MCM-41掺杂Yb~(3+)对组装体中客体Tb(aspirin)_3 phen发光性能的影响 |
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| 引用本文： | 周彬,魏长平,彭春佳,祝翠梅.无机基质MCM-41掺杂Yb~(3+)对组装体中客体Tb(aspirin)_3 phen发光性能的影响[J].光谱学与光谱分析,2009,29(2). |
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| 作者姓名： | 周彬 魏长平 彭春佳 祝翠梅 |
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| 作者单位： | 长春理工大学材料科学与工程学院,吉林,长春,130022 |
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| 基金项目： | 教育部科学技术研究重点项目，吉林省教育厅科技计划项目 |
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| 摘 要： | 在室温下,以掺Yb3+的MCM-41作为主体,"热处理"后的Tb(aspirin)3phen作为发光客体,将其进行组装,通过XRD和N2-吸附脱附和IR对组装体的结构和物理性质进行了研究.利用激发和发射光谱分析了组装体的光致发光性能和主客体关系.采用了一种新型的掺杂方法"直接焙烧法",用以避免在试样合成中掺杂离子的损失.在Yb/MCM-41和Tb(aspirin)3phen-Yb/MCM-41的XRD谱图中同时在20=2.6时出现了(100)晶面衍射峰,表明试样为规则有序,六方结构的MCM-41材料.Tb(aspirin)3phen进入Yb/MCM-41孔道后,无机骨架的有序性进一步增加.相对于MCM-41,Yb/MCM-41在IR谱图中波数963cm-1的谱带减弱,表明Yb3+已经进入无机骨架.另外,波数1 384 cm-1的吸收谱带也能提供组装体Tb(as-pirin)3phen-MCM-41中成键的特征信息.PL测试结果表明,Tb(aspirin)3phen在240～375 nm区间的宽激发吸收分别归属于配体aspirin羰基n→π跃迁,苯环,π→π跃迁和phen的杂菲基团吸收.对客体Tb(aspirin)3phen进行热处理,能增强Tb(aspirin)3phen在MCM-41孔道中的发光效率,并且当基质MCM-41硅骨架掺杂Yb3+后,组装体的发光强度进一步增强,当Yb/Si=7.579×10-3时,发光强度最高.
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| 关 键 词： | 掺杂 组装 结构 光致发光 |
Effect of Inorganic Host MCM-41 Doped with Yb~(3+) on the Photoluminescence Properties of Guest Tb(aspirin)_3 phen |
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| ZHOU Bin,WEI Chang-ping,PENG Chun-jia,ZHU Cui-mei School of Materials Science , Engineering,Changchun University of Science , Technology,Changchun ,China.Effect of Inorganic Host MCM-41 Doped with Yb~(3+) on the Photoluminescence Properties of Guest Tb(aspirin)_3 phen[J].Spectroscopy and Spectral Analysis,2009,29(2). |
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| Authors: | ZHOU Bin WEI Chang-ping PENG Chun-jia ZHU Cui-mei School of Materials Science Engineering Changchun University of Science Technology Changchun China |
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| Institution: | ZHOU Bin,WEI Chang-ping,PENG Chun-jia,ZHU Cui-mei School of Materials Science , Engineering,Changchun University of Science , Technology,Changchun 130022,China |
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| Abstract: | Assembly system with MCM-41 doped with Yb 3+ as a host,and Tb(aspirin) 3phen,which had been heat treated,as an active optical guest,was synthesized at room temperature.The structure and physical properties of the composites were characterized by a combination of different techniques such as XRD,N 2 adsorption-desorption and IR,while the photoluminescence properties of the composites were analyzed by PL.Excitation and emission spectra were examined to explore the PL properties of the prepared samples and the... |
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| Keywords: | Yb/MCM-41 Tb(aspirin)3phen |
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