Method for preparing self-assembled waxberry-shaped gold SRES substrate with assistance of iron nanometer dot matrix

The invention relates to a method for preparing a self-assembled waxberry-shaped gold SRES substrate with the assistance of an iron nanometer dot matrix. The method comprises the following steps: preparing an AAO template with uniform aperture, then growing an iron nanowire on the AAO template, performing the gold plating, and forming the waxberry-shaped gold nanometer dot matrix. Compared with the prior art, the method has the characteristics of simple and easy preparation process, efficient and concise synthetic process, no pollution and low cost; a large-area regular orderly waxberry-shapedself-assembled Au nano spherical array structure with the controllable structure and high sensitivity is formed on the iron nano wire in the evaporation process, the self-assembled SERS substrate canform a rough surface and orderly nanometer array, has high Raman reinforcing activity, can be reused, can improve the stability of SERS, and can be widely applied to the trace detection. 本发明涉及种铁纳米点阵辅助制备自组装杨梅状金SRES衬底的方法，步骤如下：制