溶胶-凝胶法制备掺铕镧系铝石榴石

2015 International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS) Pub Date : 2015-03-13 DOI:10.5220/0005252901650171

L. Pavasarytė, B. López, A. Kareiva

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引用次数: 0

摘要

采用溶胶-凝胶法制备了不同Eu掺杂量的含镧离子石榴石Tb3Al5O12 (TAG)、Dy3Al5O12 (DAG)和Ho3Al5O12 (HAG)。在1000℃下烧结的粉末的x射线衍射图(XRD)显示，形成了单相TAG、DAG和HAG。并用FTIR光谱对样品的相组成进行了表征。采用扫描电子显微镜(SEM)和动态光散射测量(DLS)研究了多晶样品的微观结构特征。用激光和荧光分光光度计对其发光特性进行了研究。

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On the sol-gel preparation of selected lanthanide aluminium garnets doped with europium

A sol-gel method based on in-situ generation of mixed-metal chelates by complexing metal ions with ethane-1,2-diol in an aqueous media has been elaborated to prepare lanthanide-ion containing garnets, Tb3Al5O12 (TAG), Dy3Al5O12 (DAG) and Ho3Al5O12 (HAG) doped with different amount of Eu. The X-ray diffraction patterns (XRD) of the powders sintered at 1000 °C showed the formation of monophasic TAG, DAG and HAG. The phase composition of the samples was also characterized by FTIR spectroscopy. Microstructural features of the polycrystalline samples were studied by scanning electron microscopy (SEM) and dynamic light scattered measurements (DLS). Luminescence properties were investigated by laser and fluorescence spectrophotometer.

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2015 International Conference on Photonics, Optics and Laser Technology (PHOTOPTICS)

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