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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Glass formation and glass ceramics in the system CaO-GeO2-Li2O-B2O3Re2O3-(Re=Eu3+, Tb3+, Dy3+)
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Glass formation and glass ceramics in the system CaO-GeO2-Li2O-B2O3Re2O3-(Re=Eu3+, Tb3+, Dy3+)

机译：玻璃形成和玻璃陶瓷在系统中CaO-Geo2-Li2O-B2O3Re2O3-（Re = Eu3 +，TB3 +，DY3 +）

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摘要

Glasses with different compositions were prepared from the oxide system CaO-GeO2-Li2O-B2O3 in order to find out compositions, where after thermal treatment of the initial glasses crystallize Ca2GeO4, Ca5Ge3O11 or Li2CaGeO4 as a main phase. Glass-ceramics were obtained and crystallizing phases were determined. Ca2GeO4, Ca5Ge3O11 and Li2CaGeO4 regions of existence in the glass-ceramics were defined. The infrared spectra of pure and Eu3+, Tb3+ and Dy3+ doped glasses show some variations between glass structures depending on the glass composition. Excitation and emission spectra of the doped glasses were studied. All luminescence spectra contain the characteristic transitions of Eu3+, Tb3+ and Dy3+ ions. Some difference can be seen in the Eu3+ doped and Tb3+ doped glass spectra depending on the glass composition. Differences are slight in the Dy3+ doped glass spectra. CIE coordinates of Eu3+ doped glasses, Tb3+ doped glasses and Dy3+ doped glasses are located in the red, green-yellow-pink and yellow regions.
机译：从氧化体系CaO-GeO2-Li2O-B2O3制备具有不同成分的玻璃，以确定成分，其中初始玻璃经热处理后结晶出Ca2GeO4、Ca5Ge3O11或Li2CaGeO4作为主相。制备了微晶玻璃，并测定了其结晶相。定义了微晶玻璃中存在的Ca2GeO4、Ca5GeO11和Li2CaGeO4区域。纯玻璃、Eu3+、Tb3+和Dy3+掺杂玻璃的红外光谱显示，玻璃结构之间的差异取决于玻璃成分。研究了掺杂玻璃的激发光谱和发射光谱。所有的发光光谱都包含Eu3+、Tb3+和Dy3+离子的特征跃迁。根据玻璃成分的不同，Eu3+掺杂和Tb3+掺杂的玻璃光谱存在一些差异。掺Dy3+的玻璃光谱差别很小。Eu3+掺杂玻璃、Tb3+掺杂玻璃和Dy3+掺杂玻璃的CIE坐标位于红色、绿色、黄色、粉色和黄色区域。

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