期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 127, 期 12, 页码 5886-5897出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.jpcc.3c00106
关键词
-
In this study, we investigate the spectral relationships between electromagnetic enhancement, surface-enhanced resonant Raman scattering (SERRS), and surface-enhanced fluorescence (SEF) by using single silver nanoparticle dimers as a model system. We focus on the lowest-energy plasmon in far-field scattering and classify the spectral relationships into two types. Based on our analysis, we find that dipole-dipole and dipole-quadrupole-coupled plasmon resonance are responsible for the electromagnetic enhancement.
We investigate the spectral relationships between electromagnetic (EM) enhancement and surface-enhanced resonant Raman scattering (SERRS) with surface-enhanced fluorescence (SEF), which is observed as background emission of SERRS, in the context of light-matter interactions between subradiant plasmons and molecular excitons, using single silver nanoparticle dimers as a model system. We focus on the lowest-energy (superradiant) plasmon in far-field scattering to examine EM enhancement. We classify the spectral relationships into two types: those in which the spectral envelopes of SERRS with SEF have spectral shapes similar to those of plasmon resonance and those in which the spectral envelopes of SERRS with SEF exhibit higher energy shifts than the plasmon resonance. By examining these results, we aim to determine the degree of morphological asymmetry in the dimers based on an EM mechanism. Our analysis of the two types of spectral relationships reveals that dipole-dipole and dipole-quadrupole-coupled plasmon resonance (subradiant resonance) are responsible for EM enhancement.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据