title: Luminescence studies on europium-strontium phthalate system.
abstract: New lanthanide luminescence materials were prepared. The main component lanthanide chelates generally need a relatively high content of rare earth. Inorganic luminescence materials only need low rare earth concentration using doped method. Similarly, lanthanide chelates can be added to complex matrix by doped method. In this way, low rare earth concentration emission was successful in the lanthanide chelates system as well. The influence of europium ion concentration on luminescence intensities was discussed. When the europium ion weight in the complex is only about 0.6%, the sample exhibits good luminescence properties. The fluorescence, Fourier transform infrared spectra, micro-Raman and electron spin resonance spectra of the samples were measured. And a possible luminescence mechanism was suggested by the inorganic doped mechanism and the luminescence of lanthanide complexes together.
authors.affiliation: Department of Chemical Biology, The State Key Laboratory of Rare Earth Materials and Applications, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China.
authors.forename: Limin
authors.initials: L
authors.lastname: Yang
authors.forename: Ying
authors.initials: Y
authors.lastname: Zhao
authors.forename: Yunlan
authors.initials: Y
authors.lastname: Su
authors.forename: Jinguang
authors.initials: J
authors.lastname: Wu
mesh_terms: D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D010795:Phthalic Acids / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013059:Spectrum Analysis, Raman; D013324:Strontium / Q000737:chemistry*
chemical_list: D010795:Phthalic Acids; D005063:Europium; C032279:phthalic acid; D013324:Strontium