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New Ternary Europium Aluminate Luminescent Nanoribbons for Advanced Photonics

机译:用于高级光子学的新型三元铝酸铝发光纳米带

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摘要

Developing novel one-dimensional (1D) luminescent nanostructures (e.g., nanowires and nanoribbons) is highly desired for enabling progress in nanophotonics and other emerging optical technologies. Previous studies on 1D luminescent nanostructures were mostly focused on elemental and binary semiconductor materials, the light emission of which originates from the radiative recombination of electrons and holes via either intrinsic states or extrinsic defect states. Herein, three kinds of ternary europium aluminate nanoribbons are reported that have localized Eu~(2+) luminescent centers and exhibit new compositions, new crystal lattice structures, and new luminescence properties and mechanisms. These three europium aluminate nanoribbons are: blue luminescent EuAl_6O_(10) with a new composition and a new tetragonal lattice structure, green luminescent EuAI_2O_4 with a monoclinic lattice structure, and orange luminescent EuAI_2O_4 with a new hexagonal lattice structure and extremely large band width and Stokes shift of emission. These materials have promising applications as nanometer-scale light generators and waveguides in nanophotonics and as light converting phosphors in warm white light-emitting diodes.
机译:迫切需要开发新颖的一维(1D)发光纳米结构(例如,纳米线和纳米带),以实现纳米光子学和其他新兴光学技术的进步。先前关于一维发光纳米结构的研究主要集中在元素和二元半导体材料上,其发光源于电子和空穴通过本征态或非本征缺陷态的辐射复合。在此,报道了三种三价铝酸a纳米带,它们具有局部的Eu〜(2+)发光中心,并显示出新的组成,新的晶格结构以及新的发光特性和机理。这三种铝酸铝纳米带分别是:具有新组成和新四方晶格结构的蓝色发光EuAl_6O_(10),具有单斜晶格结构的绿色发光EuAI_2O_4和具有新六角形晶格结构,极大带宽和斯托克斯的橙色发光EuAI_2O_4。排放转移。这些材料具有广阔的应用前景,可作为纳米光子学中的纳米级光发生器和波导以及温暖的白色发光二极管中的光转换磷光体。

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  • 来源
    《Advanced Functional Materials》 |2013年第16期|1998-2006|共9页
  • 作者单位

    College of Engineering University of Georgia Athens, CA 30602, USA ,Department of Physics and Astronomy University of Georgia Athens, GA 30602, USA;

    Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge, TN 37831, USA;

    College of Engineering University of Georgia Athens, CA 30602, USA;

    Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge, TN 37831, USA;

    Materials Science and Technology Division Oak Ridge National Laboratory Oak Ridge, TN 37831, USA;

    X-ray Science Division Argonne National Laboratory Argonne, IL 60439, USA;

    Department of Physics and Astronomy University of Georgia Athens, GA 30602, USA;

    College of Engineering University of Georgia Athens, CA 30602, USA ,Department of Physics and Astronomy University of Georgia Athens, GA 30602, USA;

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