Nucleus-free two-dimensional electron gas structure enhanced Raman scattering

• 来源期刊: 科学通报（英文版）
• 年，卷（期）: 2020,（14）
• 页码范围: 1139-1140
• 页数: 2页
• 语种: 英文

摘要

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 the electromagnetic mechanism (EM) based noble-metal substrates show superior enhancement factor (EF) of 106 or higher,they inevitably suffer from the poor biocompatibility,nearly immobilized band structure,excessive cost and so on.