%0 Journal Article
%T Fabrication of Scale-like Silver-Nanosheets-Grafted Carbon-Fenced Conductive Silver Nanowires as Effective 3D SERS Substrates
%J -
%D 2018
%R https://doi.org/10.1021/acsanm.8b00993
%X The Ag-nanosheets (i.e., AgNST)-grafted carbon-fenced conductive Ag nanowires with 3D scale-like nanostructure was successfully fabricated through a direct chemical reduction method, where the carbon shell was first carbonized onto the suface of Ag nanowires to form an Ag [email protected] (i.e., [email protected]) framework, and then the citrate acid which absorbed on the prefabricated [email protected]@Ag seeds framework directed Ag ions to be Ag nanosheets to self-assemble into 3D scale-like nanostructures (i.e., [email protected]@AgNST). The fabricated nanostructure displayed the sensitive and reproducible surface-enhanced Raman scattering (SERS) responses. The SERS detection for the probing molecule (rhodamine 6G, R6G) with concentration as low as 10¨C12 mol/L was obtained in a reproducible way, and the average enhancement factor was about 2.33 ¡Á 105, which was calculated from the band of 610 cm¨C1 in the SERS spectrum. It was caused by Ag nanosheets with high density providing abundant ¡°hot spots¡± to enhance the SERS detection. Besides, the potential SERS detection of glucose molecules in the micromolar range was also reported
%U https://pubs.acs.org/doi/10.1021/acsanm.8b00993