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A novel Mn2+ doped Li2CdSiO4 phosphors were synthesized in 1100°C without reducing atmosphere. Their structure, self-reduction mechanism and luminescence properties were evaluated. Oxygen vacancies were confirmed to exist in Li2CdSiO4 by electron spin-resonance spectroscopy and bond volume polarizability of Li2CdSiO4 was calculated to prove the lattice oxygen (O3) may easily form oxygen defect (Vo•)...
The characteristics of host–guest complexation between p-sulfonated calix [G. Arena, S. Gentile, F. G. Gulino, D. Sciotto, C. Sgarlata, Tetrahedron Lett. 45 (2004) 7091] arene (SC6A) and cationic surfactant cetyltrimethylammonium bromide (CTAB) were studied by fluorescence spectrometry. A 1:1 stoichiometry for the complexation was established and the complex constant was also calculated by a deduced...
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