Optical properties of Eu(fod)3-doped polymers using supercritical carbon dioxide |
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| Authors: | VI Gerasimova YuS Zavorotny AYu Chebrova DA Lemenovskii |
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| Institution: | a Skobel’tsyn Research Institute of Nuclear Physics, Moscow State University, Leninskie Gory, Moscow 119991, Russia
b Chemistry Department, Moscow State University, Leninskie Gory, Moscow 119991, Russia |
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| Abstract: | X-ray diffraction pattern of solvated Eu(fod)3(H2O)1,5(i-PrOH)0,5 form of Eu(fod)3 complex (fod=6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octanedionate) is presented. The photoluminescence (PL) spectra of Eu3+ ions in polycrystalline powder Eu(fod)3 and also in Eu(fod)3-doped polymethylmethacrylate (PMMA), polypropylene (PP) and polydimethylsiloxane (PDMS) were investigated. It is revealed that the matrix influences the temperature quenching of PL intensity in the range 20-100 °C. A polycrystalline powder Eu(fod)3 and Eu(fod)3-doped PP are the most effective materials for PL quenching. It is shown that water molecules in the first coordinating sphere of Eu3+ ions increase PL intensity temperature quenching. |
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| Keywords: | 61 05 cp 78 40 Me 78 55 Kz 78 66 Qn |
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