Hybrid nanoparticle platforms toward multifunctional surface-enhanced Raman scattering (SERS) spectroscopy applications
Surface-enhanced Raman scattering (SERS) spectroscopy is a highly sensitive spectroscopy technique that can boost the Raman fingerprint signals of molecules. However current SERS applications are limited to dye/thiolated molecules sensing or monitoring spontaneous reactions, mainly due to poor analy...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis-Doctor of Philosophy |
| Language: | English |
| Published: |
Nanyang Technological University
2020
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/145287 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | Surface-enhanced Raman scattering (SERS) spectroscopy is a highly sensitive spectroscopy technique that can boost the Raman fingerprint signals of molecules. However current SERS applications are limited to dye/thiolated molecules sensing or monitoring spontaneous reactions, mainly due to poor analyte-plasmonic surface affinities. In this thesis, we address these challenges by designing hybrid plasmonic platforms for multifunctional SERS applications. In chapter 2, we demonstrate the fabrication of hybrid SERS- and electrochemically-active three-dimensional plasmonic liquid marble for in-situ monitoring of an electrochemical redox reaction. In chapter 3, we incorporate metal-organic frameworks (MOFs) with Ag nanocubes superlattice array to preconcentrate non-adsorbing vapor molecules for SERS detection. For chapter 4 and 5, we exploit plasmonic nanoparticles-MOF hybrids for gas-based applications, realizing catalysis and SERS investigation of interfacial processes for ambient electrochemical nitrogen reduction and CO2 carboxylation reaction, respectively. Lastly, I conclude my thesis with a summary of my research works and identify potential future work. |
|---|