Improved photoluminescence properties of ternary terbium complexes in mesoporous molecule sieves.

摘要: Ternary terbium complexes were fully encapsulated and uniformly distributed into the channels of unmodified modified mesoporous molecule sieves SBA-15 characterized by transmission electron micrographs (TEM), Fourier transform infrared spectroscopy (FTIR), ultraviolet−visible (UV−vis) absorption spectra, inductively coupled plasma-atomic emission (ICP-AES), elemental analysis. The luminescent properties for systematically studied in contrast to pure complexes, including excitation fluorescence dynamics, photostability under UV exposure, temperature dependence intensity lifetime. results indicate that bands assigned π−π* transition ligands Tb split different components due decreased symmetry disappeared at long wavelengths. Owing suppressed vibration transitions, outer quantum efficiency 5D4-7FJ (J ...