Multiple Energy Transfers in Rare Earth Complex-Doped SiO2 Spheres
作者： Changqing Huang , Ting Sun , Weijian Tian , Baoping Zhao
DOI: 10.1016/S1002-0721(06)60080-X
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摘要: Abstract Silica spheres doped with Eu(TTFA) 3 and/or Sm(TTFA) were synthesized by using the modified Stober method. The transmission electron microscope image reveals that hybrid have smooth surfaces and an average diameter of about 210 nm. Fluorescence spectrometer was used to analyze fluorescence properties spheres. results show multiple energy transfer processes are simultaneously achieved in same samples co-doped Eu (TTFA) , namely between ligand 3+ ion, Sm ion ion. Energy → leads enhancement emission approximately order magnitude. lifetimes also measured.
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