CARBON NANOWALLS DECORATED WITH GOLD NANOPARTICLESFOR SURFACE-ENHANCED RAMAN SPECTROSCOPY

Digest Journal of Nanomaterials and Biostructures

S. Mihai¹ 

关键词: SERS;    Carbon nanowalls;    Vertical graphene;    Rhodamine B;   

DOI  :  

学科分类：生物技术

来源: Institute of Materials Physics

【 摘 要 】

In this paper, we report a hybrid platform for the detection of low-concentration moleculesby Surface-Enhanced Raman Spectroscopy (SERS). It is based on carbon nanowallsdecorated with gold nanoparticles, and its sensitivity is demonstrated using Rhodamine Bas analyte. With this substrate, it was possible to detect Rhodamine B, with concentrationslower than 10-10 M. The detection limits is related to the large surface area of carbonnanowalls (CNW) with affinity for aromatic molecules, offering also accommodation to alarge number of nanoparticles and to an enhanced coupling of the incident light to surfaceplasmons of gold nanoparticles. These results are relevant for development of opticalsensing platforms based on SERS signals.

【 授权许可】

Unknown