Laser Fabrication of Hybrid Graphene/Silver SERS Chips and Their Applications

Abstract

石墨烯/银复合结构SERS器件可充分发挥石墨烯与银纳米结构的特性,具有良好的性能。银纳米结构SERS活性强,但稳定性差,在空气中易氧化,限制了银SERS器件的应用。石墨烯具有原子级的厚度,良好的光学透过率,稳定的化学性质,是SERS器件理想的壳层材料,可有效阻止银纳米结构与探针分子及周围环境接触,提高基底稳定性。并且石墨烯本身还具有拉曼信号增强、荧光猝灭、探针分子富集等功能,使石墨烯/银复合结构成为SERS信号检测的理想平台。论文针对石墨烯/银复合结构SERS器件制备方面存在的问题展开研究工作,提出了两种工艺简单的石墨烯/银复合结构SERS器件快速制备方法,并根据SERS器件的特性,研制了便携...Graphene/silver is a promising composite structure for SERS chips with both the excellent performance of graphene and silver nanostructures. Graphene has been envisioned as one of the best shell materials for SERS chips to improve the stability owing to its atomic thickness, excellent optical transmittance and stable chemical property. Moreover, graphene can also function as additional signal enha...学位:工学博士院系专业:航空航天学院_测试计量技术及仪器学号:1992013015422

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