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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 >Luminescence properties of Eu3+ doped BaMoO4 transparent glass ceramics
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Luminescence properties of Eu3+ doped BaMoO4 transparent glass ceramics

机译：EU3 +掺杂Bamoo4透明玻璃陶瓷的发光性能

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摘要

Eu3+ doped transparent glass ceramics (GCs) are obtained via melt-quenching technique and subsequent heating. The structure and morphology of the samples were characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM). XRD and SEM results showed that tetragonal barium molybdate (BaMoO4) crystals are precipitated in the glass matrix. The excitation spectrum of BaMoO4:Eu3+ GCs are composed of Eu3+ ions characteristic excitation peaks. The emission spectra of BaMoO4:Eu3+ GCs consists of several sharp emission bands center at 592 nm, 615 nm, 653 nm and 702 nm, respectively. Among them, the strongest one was located at 615 nm due to D-5(0) - F-7(2) transition of Eu3+ generating bright red light. The quantum efficiency of BaMoO4:Eu3+ GC is 46.3%, and the fluorescence lifetime is 2.0716 ms, when the Eu3+ ions doping concentration is 0.7 mol%.The results show that Eu3+ doped BaMoO4 glass ceramics exhibit a potential to act as a kind of red phosphor for white light-emitting diodes (W-LEDs).
机译：EU3 +掺杂透明玻璃陶瓷（GCS）通过熔融淬火技术和随后的加热获得。样品的结构和形态通过X射线衍射（XRD）和扫描电子显微镜（SEM）为特征。 XRD和SEM结果表明，四边形钡钼酸钡（BAMO 4）晶体在玻璃基质中沉淀。 BAMO4：EU3 + GCS的激发谱由EU3 +离子特征激发峰组成。 BAMO4：EU3 + GCS的发射光谱分别由592nm，615nm，653nm和702nm的几个尖锐发射带中心组成。其中，由于D-5（0） - ＆gt，最强的人位于615nm。 F-7（2）EU3 +发电亮红光的过渡。 BAMO4：EU3 + GC的量子效率为46.3％，当EU3 +离子掺杂浓度为0.7mol％时，荧光寿命为2.0716ms。结果表明EU3 +掺杂Bamoo4玻璃陶瓷表现出充当一种红色的潜力白色发光二极管（W-LED）的磷光体。

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