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The morphology of Au@MgO nanopeapods

机译:Au @ MgO纳米豆荚的形态

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The structure of metal nanoparticles embedded inside dielectric nanowiresanotubes, namely nanopeapods, has been of increasing interest due to their unusual photoresponse and optical adsorption properties. This paper presents a type of new inorganic nanopeapod: faceted Au nanoparticles inside MgO nanowires. The Au self-assembles into a nanoparticle chain during the vapor-liquid-solid growth of the MgO nanowires for which gold also serves as the catalyst. Surprisingly such a chain can follow the whole axis of the MgO nanowires even if the latter zigzag, provided that the amount of gold is sufficient. It is shown that such Au@MgO nanopeapods form not only under metalorganic chemical vapor deposition conditions (Lai et al 2009 Appl. Phys. Lett. 94 022904), but also under our conventional vapor transport deposition condition. This new nanopeapod material might be a candidate for the study of electronic and/or plasmonic wave transport along nanowires.
机译:嵌入在介电纳米线/纳米管内部的金属纳米颗粒(即纳米豆足)的结构由于其不寻常的光响应和光学吸附特性而受到越来越多的关注。本文介绍了一种新型的无机纳米豆荚:MgO纳米线内部的多面金纳米颗粒。在MgO纳米线的汽-液-固生长过程中,Au自组装成纳米颗粒链,金也可作为催化剂。出乎意料的是,即使金的量足够,这种链也可以跟随MgO纳米线的整个轴,即使后者为锯齿形。结果表明,这种Au @ MgO纳米豆足不仅在有机金属化学气相沉积条件下形成(Lai等,2009 Appl。Phys.Lett。94 022904),而且在我们常规的气相传输沉积条件下形成。这种新的纳米豆荚状材料可能是研究沿纳米线的电子和/或等离子体波传输的一种候选材料。

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