【摘要】 <正>As a powerful non-destructive and label-free detection technology, surface enhanced Raman scattering(SERS) has been widely used in environmental-pollutant detection, biological-tissue sensing, molecular fingerprint analysis and so on. Since Fleishmen et al. [1] and Van Duyne et al. [2] discovered SERS on rough silver surface, the search for perfect materials as substrates for SERS is one of the challenges of material and chemical scientists. Although更多还原