作者: Chang Liu , Bing Yan
关键词: Imidazole 、 Luminescence 、 Metal-organic framework 、 Acrylate 、 Copolymer 、 Pyridine 、 Chemistry 、 Monomer 、 Lanthanide 、 Photochemistry
摘要: A series of photoactive polymer hybrid films fabricated with both lanthanide complexes and ZIF-8 [zeolite imidazole framework, a kind metal organic Zn(MeIM)2, MeIM = 2-methylimidazole] was prepared. the Ln-L [Ln Eu, Tb; L AA (acetylacetonate), phen (1,10-phenanthroline), TAA (trifluoroacetylacetonate), TTA (trifluoroacetylacetonate)] were assembled monomers 4-vinyl pyridine (VPD) ethylene-methyl acrylate (EMA), forming final after initiation benzoyl peroxide (BPO). The products are indicated as PEMA-PVPD⊃Ln-L/ZIF-8 [PEMA-PVPD: copolymer poly (PVPD) polyethylene-methyl (PEMA)]. SEM images these indicate homogeneous dense packing high degree coverage crystals on ITO glass. luminescent behavior all studied in detail. Discrete luminescence unit observed which energy coupling between two emissive centers does not exist. Therefore, by selectively exciting different wavelengths, colors them can be tuned from blue (for ZIF-8) to red Eu3+), green Tb3+), yellow Eu3+/Tb3+) even white integrating emission Eu3+/Tb3+ into (PEMA-PVPD). These results useful have potential application optical devices for displays or encoding.