Nanoscale flexible Ag grating/AuNPs self-assembly hybrid for ultra-sensitive sensors

被引：18

作者：

Dong, Jun ^{[1
]}

Cao, Yi ^{[1
]}

Han, Qingyan ^{[1
]}

Gao, Wei ^{[1
]}

Li, Tuo ^{[1
]}

Qi, Jianxia ^{[2
]}

机构：

[1] Xian Univ Posts & Telecommun, Sch Elect Engn, Xian 710121, Peoples R China

[2] Xian Univ Posts & Telecommun, Sch Sci, Xian 710121, Peoples R China

来源：

NANOTECHNOLOGY | 2021年 / 32卷 / 15期

关键词：

local surface plasmon; self-assembly; hybrid nanostructure; SERS; RAMAN-SPECTRA; SERS; GRAPHENE; ENHANCEMENT; NANOPARTICLES; OPTIMIZATION; PERFORMANCE; PYRIDINE; ARRAYS; LAYERS;

D O I：

10.1088/1361-6528/abd7b2

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

In this paper, Au nanoparticles (AuNPs) are prepared using wet chemical reduction transfer of dense AuNPs film by self-assembly to the surface of Ag grating, which is inverted from the inner DVD after evaporation. The Ag grating/AuNPs self-assembly hybrid substrate commonly used in surface-enhanced Raman scattering (SERS) research is produced. The coupling effect between AuNP-AuNP and AuNPs-Ag slugs can evidently enhance the local electric field. Experimental results show that the hybrid SERS substrate can detect 10(-9) M Rh6G, and the enhancement factor reaches 4.4 x 10(5). This small, cheap hybrid substrate has enormous potential in the field of SERS sensing.

引用

页数：12

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