Related Experiment Video
Updated: Feb 4, 2026

Author Spotlight: Development and Application of SERS Flexible Substrates Using Synthesized AgNPs
Published on: November 17, 2023
Fabrication and simulation of V-shaped Ag nanorods as high-performance SERS substrates
Jianghao Li1, Yihang Fan, Xiaotian Xue
1State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China. zjzhang@tsinghua.edu.cn.
Abstract:
Bending straight Ag nanorods (AgNRs) into V-shaped structures can generate a higher surface-enhanced Raman scattering (SERS) performance. Numerical simulations showed that V-shaped AgNRs with a total length between 300 nm and 800 nm were more sensitive than equal-length straight AgNRs under a 785 nm laser in most cases. It was found that at a laser wavelength between 500 nm and 1000 nm, the Raman enhancement factor (EF) of a V-shaped AgNR's 3rd plasmon mode was not only optimal among the other major plasmon modes, but also outperformed the plasmon modes of straight AgNRs. Besides, a linear relationship between the resonance wavelength of the V-shaped AgNR's 3rd mode and its length was observed both numerically and experimentally, which was beneficial for the optimization of SERS substrates. Under 785 nm laser excitation, V-shaped AgNR substrates with a single arm length between 330 nm and 340 nm possessed the highest SERS efficiency. This work took AgNR array substrates one step closer to practical applications.
More Related Videos
13:44Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
Published on: December 27, 2012
10:39Preparation of ZnO Nanorod/Graphene/ZnO Nanorod Epitaxial Double Heterostructure for Piezoelectrical Nanogenerator by Using Preheating Hydrothermal
Published on: January 15, 2016
Related Concept Videos
Molecular Shape and Polarity
VSEPR Theory and the Basic Shapes
Molecular Shapes
Two regions of electron density in a diatomic...
First Derivatives and the Shape of a Graph
Second Derivatives and the Shape of a Graph
Shape and Texture of Coarse Aggregate