Synthesis and surface plasmonic properties of ultra-thick silver nanowires
Synthesis and surface plasmonic properties of ultra-thick silver nanowires
复制标题
超粗银纳米线的合成及其表面等离子体特性
DOI：
10.1088/0953-8984/28/25/254005
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发表时间：
2016-06-29
影响因子：
2.7
通讯作者：
Li, Fuli
中科院分区：
文献类型：
--
作者：
Hua, Jiaojiao;Wu, Fan;Li, Fuli
金属纳米线在纳米尺度的集成光电器件中具有重要的应用潜力。考虑到纳米线的操纵和与表面等离子体激元（SPP）模式相关的能量损失，这些模式在纳米光子器件中充当信号载流子，具有大直径的纳米线是重要的。在这项工作中，我们报告了一个连续的多步骤的多元醇工艺方法的合成超厚银纳米线（银纳米线），并研究其能量损失。在第一步中制备的薄Ag纳米线被用作在后续步骤中进一步生长厚Ag纳米线的晶种，其中已经制备了直径高达1820 nm的Ag纳米线。我们进一步研究了这些厚Ag纳米线的SPP传输特性，发现直径增加的Ag纳米线的能量损耗降低。我们的实验结果对基于SPP的纳米光子器件和电路的设计和制造具有重要意义。
Metallic nanowires (NWs) possess significant potential for applications in integrated photonic and electronic devices at the nanoscale. Considering the manipulation of NWs and energy loss associated with surface plasmon polaritons (SPPs) modes which serve as signal carriers in the nanophotonic devices, NWs with large diameters are significant. In this work, we report a successive multi-step polyol process approach for the synthesis of ultra-thick silver nanowires (Ag NWs) and investigate their energy loss. Thin Ag NWs prepared in the first step are used as seeds for the further growth of thick Ag NWs in the subsequent steps, where Ag NWs with diameter as large as 1820 nm have been prepared. We further investigate the SPP propagation properties of these thick Ag NWs, and find that energy loss is decreased in Ag NWs with improved diameter. Our experimental results are important for the design and fabrication of SPP-based nanophotonic components and circuits.