Sol-gel synthesis of fluorescent materials based on barium aluminate L. Selyunina, L. Mishenina, E. Kuznetsova, T. Belyaninova
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ArticleSubject(s): золь-гель синтез | алюминат бария | термический анализ | флуоресцентные материалы | люминофорыGenre/Form: статьи в журналах Online resources: Click here to access online
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AIP Conference Proceedings Vol. 1772. P. 020008-1-020008-8Abstract: Barium aluminate was obtained by sol-gel method. We used a heat treatment in an oven at 130°C, and microwave radiation for drying the gel. To obtain a crystalline product all samples were calcined in the muffle furnace at the temperatures up to 1100°C. Complex studies were used to identify the dynamics of phase and structural transformations in the synthesis of barium aluminate. The main stages of formation BaAl2O4 were determined by thermal analysis; evolution of phase composition and crystal structure were studied using X-ray diffraction and IR-spectroscopy. The morphology of surface of the barium aluminate was investigated by scanning electron microscope. In the work fluorescent material with composition Ba1-xEuxAl2O4 was obtained. The maximum of luminescent intensity is achieved with content of Eu3+ equal 0.75 mol in the case of processing of gel by microwaves. The phosphor obtained by heat treatment in an oven gel has a composition Ba0.9Eu0.1Al2O4.
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Barium aluminate was obtained by sol-gel method. We used a heat treatment in an oven at 130°C, and microwave radiation for drying the gel. To obtain a crystalline product all samples were calcined in the muffle furnace at the temperatures up to 1100°C. Complex studies were used to identify the dynamics of phase and structural transformations in the synthesis of barium aluminate. The main stages of formation BaAl2O4 were determined by thermal analysis; evolution of phase composition and crystal structure were studied using X-ray diffraction and IR-spectroscopy. The morphology of surface of the barium aluminate was investigated by scanning electron microscope. In the work fluorescent material with composition Ba1-xEuxAl2O4 was obtained. The maximum of luminescent intensity is achieved with content of Eu3+ equal 0.75 mol in the case of processing of gel by microwaves. The phosphor obtained by heat treatment in an oven gel has a composition Ba0.9Eu0.1Al2O4.
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