| MCM-41和HMS孔内组装[Eu(bpy)2]3+及其光致发光性质 |
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| 引用本文： | 葛树勋,何农跃.MCM-41和HMS孔内组装[Eu(bpy)2]3+及其光致发光性质[J].东南大学学报,2005,21(2):211-214. |
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| 作者姓名： | 葛树勋 何农跃 |
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| 作者单位： | [1]东南大学分子与生物分子电子学教育部重点实验室，南京210096 [2]东南大学分子与生物分子电子学教育部重点实验室，南京210096／／株洲工学院包装与印刷学院，株洲412008 |
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| 基金项目： | TheOpenProjectofNationalLaboratoryofSolidStateMicrostructures,TransCenturyTrainingProgrammeFoundationfortheTalentsbytheStateEducationCommission. |
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| 摘 要： | 采用浸渍的方法在MCM-41和HMS介孔材料孔内组装Eu(bpy)2]3 (bpy:2,2-联吡啶).所得介孔复合材料经XRD、ICP等离子发射光谱、IR、N2吸附实验及光致发光谱进行了表征.实验结果表明:与介孔材料母体相比,组装稀土配合物后的介孔复合材料的BET比表面积、孔径和孔容均有所下降;组装稀土配合物的介孔复合材料在氙光源激发下,均发射出特征的Eu3 光致发光谱;与组装稀土配合物的HMS介孔复合材料相比,组装后的MCM-41介孔复合材料具有较高的光致发光效率.MCM-41介孔材料是一种比HMS合适的载体,有助于增强介孔材料孔内组装稀土配合物的光致发光效率.
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| 关 键 词： | 纳米结构 光学材料 光学性质 表面性质 |
Photoluminescence of [Eu(bpy)2]3+ dispersed in MCM-41 and HMS |
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| Ge Shuxun,He Nongyue.Photoluminescence of [Eu(bpy)2]3+ dispersed in MCM-41 and HMS[J].Journal of Southeast University(English Edition),2005,21(2):211-214. |
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| Authors: | Ge Shuxun He Nongyue |
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| Abstract: | Eu(bpy)_2] 3+ (bpy:2,2'-bipyridine) was encapsulated in hexagonal mesoporous materials MCM-41 and HMS.XRD spectra,ICP analysis,IR spectra,N_2 adsorption measurements and the photoluminescence spectra were used to characterize the corresponding impregnated samples.After the impregnation of Eu(bpy)_2] 3+ , the BET surface,pore diameters and pore volume of the impregnated samples were decreased.All the impregnated samples exhibited the typical photoluminescence of Eu 3+ when excited with a xenon lamp.Compared with the impregnated HMS,the impregnated MCM-41 samples show higher photoluminescence efficiency for the impregnation of Eu(bpy)_2] 3+ . It suggests that MCM-41 is a more efficient host for the photoluminescence of europium complexes than HMS. |
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| Keywords: | nanostructures optical materials optical properties surface properties |
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