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. Issue 62 (19th July 2017)

• Record Type: Journal Article
• Authors: Qiu, Hengwei; Wang, Minqiang; Yang, Zhi; Jiang, Shouzhen; Liu, Yanjun; Li, Le; Cao, Minghui; Li, Junjie
• Is Part Of: Chemical communications. Volume 53:Issue 62(2017)
• Page Start: 8691
• Page End: 8694
• Publication Date: 2017-07-19
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc04218c
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A new route for the synthesis of Ag-core@graphene-shell@Ag-jacket nanoparticles, that contain abundant sub-10 nm size intraparticle nanopores/nanogaps. Abstract : We present a new route for the synthesis of Ag nanopore–inlay–nanogap 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 > 10 7 due to a high-density of intraparticle and interparticle "hot spots".