Erect Au nanocones with high adhesion to substrates are obtained by simply drawing from Au nano-films through Au-Si eutectic welding. Nanocones with diameters ranging from about 5 to 150 nm and length ranging from about 60 to 600 nm can be observed on both Au and Si substrate surfaces. Nano-scale Au-Si eutectics formed at the rough Au–silicon film interface under annealing at 450 °C and the subsequent cooling process facilitate the formation of nano-bonding points and draw Au nanocones from Au nano-film by mechanical separation. Erect Au nanocones adhered to Au or Si substrates shows higher light enhancement than itself, observed by FDTD simulation. This method provides new strategy for the fabrication of SERS detectors, solar cells et al. with high stability.

中文翻译：

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通过高附着力的纳米尺寸Au-Si共晶夹紧从Au纳米膜上提取的Au纳米锥

通过简单地通过Au-Si共晶焊接从Au纳米薄膜中拉出，可以获得对基材具有高附着力的直立Au纳米锥。可以在Au和Si衬底表面上观察到直径在约5-150nm范围内且长度在约60-600nm范围内的纳米锥。在450°C的退火条件下，在粗糙的Au-Si膜界面处形成纳米级Au-Si共晶，随后的冷却过程有助于形成纳米键合点，并通过机械分离从Au纳米膜中提取Au纳米锥。FDTD模拟观察到，附着在Au或Si衬底上的直立Au纳米锥显示出比其本身更高的光增强。这种方法为制造SERS检测器，太阳能电池等提供了新的策略。高稳定性。