Straight nanowires fabricated from single-layer porous anodic alumina (PAA) templates are known to be mechanically weak. To provide additional support, nanowires can be fabricated on multilayered PAA templates. In this work, Cu and Ni nanowires were fabricated using single-, double-, and three-layer PAA templates by pulse electrochemical deposition (PECD). The templates were made by anodizing Al-1 wt% Si and Al-0.5 wt% Cu thin films under different conditions. The morphologies of the PAA templates and fabricated nanowires were examined with scanning electron microscopy. The length of the nanowires was 3 μ m, while the diameters ranged from 50 to 70 nm. The nanowires fabricated from a double-layered template (Al-0.5 wt% Cu/Al-1 wt% Si) were mechanically stronger with larger surface areas than those fabricated from an anodized Al-1 wt% Si template. The nanowires formed within the anodized Al-1 wt% Si layer had tree-like branches, while vertical nanowires with horizontal anch...

中文翻译：

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使用多层多孔阳极氧化铝模板定制可控制的纳米线形态，以用于技术应用

由单层多孔阳极氧化铝（PAA）模板制成的直纳米线已知在机械上较弱。为了提供额外的支持，可以在多层PAA模板上制造纳米线。在这项工作中，使用单层，双层和三层PAA模板通过脉冲电化学沉积（PECD）制作了Cu和Ni纳米线。通过在不同条件下对Al-1 wt％Si和Al-0.5 wt％Cu薄膜进行阳极氧化来制作模板。用扫描电子显微镜检查了PAA模板和制成的纳米线的形态。纳米线的长度为3μm，而直径为50至70nm。由双层模板（Al-0.5 wt％Cu / Al-1 wt％Si）制成的纳米线的机械强度比由阳极氧化的Al-1 wt％Si模板制成的纳米线更大。