PHOTOLUMINESCENCE STUDY OF Eu(bpy)23+ SUPPORTED ON MESOPOROUS MATERIALS OF DIFFERENT PORE SIZES

摘要：

Mesoporous materials possess well-defined mesopores with pore diameter of 2-10 nm, which can hold bulk ions or molecules with special chemical and optical properties, offering a challenging approach to novel chemical and optical applications. Recently, photoluminescence (PL) has been studied on Eu3+ complexes loaded unmodified or modified MCM-41 and MCM-48. The properties of the guests in the mesoporous channels greatly depend on the structure and the microenvironment of the mesopores. Here we reported that Eu(bpy)23+ was encapsulated in the mesopores of HMS, MCM-41 and SBA-15, respectively. The PL properties and the structural effect on PL efficiency per Eu unit mass were studied. Eu(bpy)23+(bpy: 2, 2-bipyridine) was encapsulated in mesoporous HMS, MCM-41 and SBA-15, respectively. XRD. ICP analysis, FT-IR, N2 sorption and photoluminescence spectra were used to characterize the corresponding samples. All the samples exhibited the typical photoluminescence of Eu3+ when excited with a xenon lamp. Effect of dispersion degree and mesoporous structure on the photoluminescence efficiency was investigated.

关键词： Photoluminescence properties Eu doped mesoporous materials

作者: Shuxun Ge Libo Nie Song Li Jiqing Wang Quanguo He Nongyue He

作者单位: Key Laboratory of Green-Packaging and Application of Bionanotechnology of Hunan Province,Hunan Indus Key Laboratory of Green-Packaging and Application of Bionanotechnology of Hunan Province,Hunan Indus State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China

会议类型: 国际会议

会议名称: The 4th International Forum on Post-genome Technologies(4IFPT)(第四届国际后基因组生命科学技术学术论坛)

会议地点: 杭州

会议语种:英文

页码: 382-384

在线出版日期: 2006-09-25（万方平台首次上网日期，不代表论文的发表时间）