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Anisotropic Nanoparticle Arrays Guided by Ordered Nanowire Films Enhance Surface‐Enhanced Raman Scattering.

Authors :
Sheng, Si‐Zhe
Zheng, Shi‐Qiao
Feng, Xue‐Fei
Zhou, Ling‐Ran
Tao, Zhen‐Chao
Liu, Jian‐Wei
Source :
Advanced Optical Materials; Mar2023, Vol. 11 Issue 5, p1-8, 8p
Publication Year :
2023

Abstract

Designing high‐efficiency surface‐enhanced Raman scattering (SERS) substrates has attracted explosive attention in recent decades for their novel and potential applications. Great achievements have been made to optimize the intrinsic activity of nanomaterial in SERS substrates, while little attention has been paid to the unique structural design of the nanomaterial building blocks. Herein, a new strategy is provided for assembling Au nanoparticles into well‐defined ordered structures by using a highly ordered arrangement nanowires template to explore the ordering effect on the SERS performance. The highly ordered Au nanoparticle arrays show a detection limit of 10−9 m that exceeds disordered Au particles by two orders of magnitude, as well as over treble enhancement factor at the same detection concentration. Importantly, this novel scientific discovery can be further confirmed in various probed molecules or nanoparticles with different diameters, which means SERS substrate design can be pushed forward further combined with traditional intrinsic activity design. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21951071
Volume :
11
Issue :
5
Database :
Complementary Index
Journal :
Advanced Optical Materials
Publication Type :
Academic Journal
Accession number :
162242761
Full Text :
https://doi.org/10.1002/adom.202201682