Chemical vapour deposited graphene-mediated enhanced SERS performance in silver nanostructures

被引：3
作者：
Nalini, Savitha [1 ,3 ,5 ]
Thomas, Subin [1 ,4 ]
Anju, K. S. [2 ]
Jayaraj, M. K. [2 ]
Rajeev Kumar, K. [1 ]
机构：
[1] Cochin Univ Sci & Technol, Dept Instrumentat, Cochin, India
[2] Cochin Univ Sci & Technol, Dept Phys, Cochin, India
[3] Univ Kerala, Sree Narayana Coll Cherthala, Dept Phys, Alappuzha, India
[4] St Josephs Coll, Dept Phys, Moolamattom, Kerala, India
[5] Sree Narayana Coll, Dept Phys, SN Puram PO, Alappuzha 688582, Kerala, India
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2023年 / 39卷 / 08期
关键词：
CVD; graphene; surface-enhanced Raman scattering; GSERS substrate; RAMAN-SPECTROSCOPY; AU NANOPARTICLES; SURFACE; GOLD; SUBSTRATE; GRAPHITE; PLATFORM;
D O I：
10.1080/02670836.2022.2152923
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This work demonstrates how chemical vapour deposited monolayer graphene enhances the SERS activity in a conventional plasmonic substrate. The single-layer graphene is evidenced by various spectroscopic analyses. A thin coating of silver on graphene/SiO2/Si substrate serves as the graphene-mediated SERS (GSERS) platform, which offers a detection limit (LOD) of 10(-14) M and an enhancement factor of 9.48 x 10(8) for the R6G molecule. The performance of the GSERS substrate is superior to that of the substrate without graphene, which has a LOD of 10(-10) M only. The detection of low concentrations of Sudan-I is also demonstrated with the GSERS substrate. A highly sensitive simple two-stage SERS substrate made of high-quality graphene film is the crowning achievement of this study.
引用
收藏
页码：933 / 940
页数：8
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