Structure−Activity Relationships in Gold Nanoparticle Dimers and Trimers for Surface-Enhanced Raman Spectroscopy
Northwestern University · Oxonica (United States)
Abstract
Understanding the detailed relationship between nanoparticle structure and activity remains a significant challenge for the field of surface-enhanced Raman spectroscopy. To this end, the structural and optical properties of individual plasmonic nanoantennas comprised of Au nanoparticle assemblies that are coated with organic reporter molecules and encapsulated by a SiO(2) shell have been determined using correlated transmission electron microscopy (TEM), dark-field Rayleigh scattering microscopy, surface-enhanced Raman scattering (SERS) microscopy, and finite element method (FEM) calculations. The distribution of SERS enhancement factors (EFs) for a structurally and optically diverse set of nanoantennas is…
Citation impact
- FWCI
- 26.99
- Percentile
- 100%
- References
- 42
Authors
9- KLKristin L. Wustholz
Northwestern University, Oxonica (United States)
- AHAnne-Isabelle Henry
Oxonica (United States), Northwestern University
- JMJeffrey M. McMahon
Northwestern University, Oxonica (United States)
- RFRonit Freeman
Northwestern University, Oxonica (United States)
- NANicholas A. Valley
Northwestern University, Oxonica (United States)
Topics & keywords
- Raman scattering
- Raman spectroscopy
- Chemistry
- Nanoparticle
- Plasmon
- Surface plasmon resonance
- Rayleigh scattering
- Transmission electron microscopy