• 文献标题:   A new route for the synthesis of a Ag nanopore-inlay-nanogap structure: integrated Ag-core@graphene-shell@Ag-jacket nanoparticles for high-efficiency SERS detection
  • 文献类型:   Article
  • 作  者:   QIU HW, WANG MQ, YANG Z, JIANG SZ, LIU YJ, LI L, CAO MH, LI JJ
  • 作者关键词:  
  • 出版物名称:   CHEMICAL COMMUNICATIONS
  • ISSN:   1359-7345 EI 1364-548X
  • 通讯作者地址:   Xi An Jiao Tong Univ
  • 被引频次:   8
  • DOI:   10.1039/c7cc04218c
  • 出版年:   2017

▎ 摘  要

We present a new route for the synthesis of Ag nanopore-inlaynanogap structures using creviced graphene-shell encapsulated Cu nanoparticles (Cu@ G-NPs) as the sacrificial templates. The as-synthesized integrated Ag-core@graphene-shell@Ag-jacket nanoparticles (AgC@G@AgJ-NPs) presents "chrysanthemum'' shapes that contain abundant sub-10 nm size intraparticle nanopores/nanogaps, which can generate huge enhanced electromagnetic fields to support SERS activity, resulting in an average EF 4 107 due to a high-density of intraparticle and interparticle "hot spots''.