Pr^<3+>添加SrF_2系透明結晶化ガラスの作成と1.3μm発光(<特集>希土類系物質の精密合成,形態制御および機能物性)

概要

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Transparent glass ceramics containing fluorite nano-crystals were developed from oxyfluoride glasses containing 32 mol% SrF_2 doped with Pr^<3+> and Yb^<3+> ions. Materials containing xSrF_2+(32-x) CaF_2 Were also prepared and their fluorescence properties were investigated. Fluorite solid solution crystals containing lanthanide ions were precipitated as a single phase in all the glass ceramic compositions by heat-treatment at appropriate temperatures. The glass ceramics showed Pr^<3+> : 1.3 μm emission, the intensity of which became stronger with increasing SrF_2 content and heat-treatment temperature, while only the 1 μm emission of Yb^<3+> was observed in all the as-made glasses. The lattice constant of fluorite crystals increased with increasing Sr content. Among all the samples, the glass ceramic sample with 32 mol% SrF_2 showed the strongest 1.3 μm emission.
社団法人日本セラミックス協会の論文
2007-10-01