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

被引：2

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

页码：933 / 940

页数：8

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