| Title |
Graphene–metal hybrid plasmonic structures: synthesis, multi-spectroscopic characterization, and stable analyte detection |
| Translation of Title |
Grafeno–metalo hibridinės plazmoninės struktūros: sintezė, multispektroskopinis vertinimas, ir stabilus analitės aptikimas. |
| Authors |
Monshi, Marjan |
| Full Text |
|
| Pages |
146 |
| Keywords [eng] |
graphene ; surface-enhanced Raman spectroscopy ; plasmonic nanostructures ; hybrid materials ; signal stability |
| Abstract [eng] |
This dissertation investigates graphene–metal hybrid plasmonic structures for improved stability and performance of surface-enhanced Raman spectroscopy (SERS) substrates. The study combines plasma-enhanced chemical vapor deposition (PECVD), nanostructure engineering, and multi-spectroscopic characterization to explore graphene growth on catalytic substrates and the formation of graphitic shell–metal systems. Particular attention is given to the role of graphene as a protective and functional layer, enabling analyte adsorption, suppression of surface degradation, and long-term signal retention. The work demonstrates UV-SERS capability using nickel-encapsulated graphitic shells and shows that graphene-protected silver nanostructures can retain detectable analyte signals over extended periods. The results contribute to the understanding of stability mechanisms and provide design guidelines for durable and application-oriented SERS platforms. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Doctoral thesis |
| Language |
English |
| Publication date |
2026 |
