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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 >Structural and optical properties of cerium and dysprosium coactivated borophosphate glasses for cool white light application
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Structural and optical properties of cerium and dysprosium coactivated borophosphate glasses for cool white light application

机译：铈和镝的结构和光学性质，用于凉爽白光应用

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摘要

Borophosphate (SrO-Li2O-ZnO-B2O3-P2O5; SBP) glasses doped with Ce and Dy were prepared by the conventional melt quenching technique. The structural properties were investigated through X-ray diffraction, scanning electron microscopy-energy dispersive X-ray, Fourier transform infrared and Raman spectroscopy techniques. Glasses with Dy3+ showed the characteristic Photoluminescence emissions in the blue, yellow and red regions. Sensitization of Dy3+luminescence was studied in the glasses doped with Dy3+ and Ce3+. The concentrations of cerium and dysprosium were optimized to maximize the white light emission. The asymmetry ratio of Dy3+ was determined to learn about symmetry aspects in the prepared glasses. Lifetime decay measurements were carried out to get information about the observed energy transfer. The obtained chromaticity color coordinates and color correlated temperature indicated SBP:Ce0.5Dy0.3 as an efficient cool white light-emitting glass.
机译：采用传统的熔融淬火工艺制备了掺铈和镝的硼磷酸盐（SrO-Li2O-ZnO-B2O3-P2O5；SBP）玻璃。通过X射线衍射、扫描电子显微镜、能量色散X射线、傅里叶变换红外光谱和拉曼光谱技术对其结构性能进行了研究。含Dy3+的玻璃在蓝色、黄色和红色区域显示出特征性的光致发光发射。研究了掺Dy3+和Ce3+的玻璃对Dy3+发光的增敏作用。对铈和镝的浓度进行了优化，以使白光发射最大化。测定Dy3+的不对称比，以了解制备的玻璃的对称性。进行了寿命衰减测量，以获得有关观测到的能量转移的信息。获得的色度颜色坐标和颜色相关温度表明SBP:Ce0。5Dy0。3作为一种高效的冷白色发光玻璃。

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