Rectangular-plate like organosilica microcrystals based on silylated β-diketone and lanthanide ions
作者： Yu Wang , Yige Wang , Pengpeng Cao , Yanni Li , Huanrong Li
DOI: 10.1039/C0CE00014K
关键词:
摘要: We report here the preparation of luminescent organosilica microcrystals with rectangular-plate morphology by a facile method reacting silylated β-diketone lanthanide ions under reflux without any structure-directing agent. Factors affecting formation including reaction temperature and molar ratio lanthanide/β-diketone are discussed. FTIR, SEM, XRD, 29Si solid-state NMR spectroscopy photoluminescence were employed to characterize obtained microcrystals. Photoluminescence studies show luminescence material is high monochromatic purity. The 5D0 quantum efficiency Eu3+ was estimated based on decay time Eu3 + 5D0 excited level emission spectrum
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