Fabrication of cost-effective, highly reproducible large area arrays of nanotriangular pillars for surface enhanced Raman scattering substrates
| Autor: | Kumaran Rajeev Kumar, Aldrin Antony, Joaquim Puigdollers, M. K. Jayaraj, K. Hasna |
|---|---|
| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica, Universitat Politècnica de Catalunya. MNT - Grup de Recerca en Micro i Nanotecnologies |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Metal nanostructureslocalized surface plasmon resonance (LSPR)
Substrateenhancement factor Fabrication Materials science Silicon Sers Pyridine Localized Surface Plasmon Resonance (Lspr) chemistry.chemical_element Nanotechnology 02 engineering and technology Substrate (electronics) Ag 010402 general chemistry 01 natural sciences symbols.namesake General Materials Science Electrical and Electronic Engineering Plasmon Surface enhanced Raman scattering (SERS) Colloidal Silver Spectroscopy Monolayers Nanoestructures Física [Àrees temàtiques de la UPC] business.industry Enhancement Factor Metal Nanostructures Surface Enhanced Raman Scattering (Sers) Substrate Spectra 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics 0104 chemical sciences Nanostructures Hot-Spots chemistry symbols Optoelectronics Photonics 0210 nano-technology business Raman spectroscopy Silver Electrode Raman scattering Electron-beam lithography |
| Zdroj: | Recercat. Dipósit de la Recerca de Catalunya instname UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| ISSN: | 2381-3652 |
| DOI: | 10.1007/s12274-016-1190-y |
| Popis: | Development of cost-effective, highly reproducible non-conventional fabrication techniques for anisotropic metal nanostructures is essential to realizing potential applications of plasmonic devices, photonic devices, and surface enhanced Raman scattering (SERS) phenomenon based sensors. This report highlights the fabrication of nanotriangle arrays via nanoimprinting to overcome difficulties in creating large-area SERS active substrates with uniform, reproducible Raman signals. Electron beam lithography of anisotropic nanostructures, formation of arrays of nanotriangles in silicon and the transfer of triangular shapes to polymethylmethacrylate (PMMA) sheets via nanoimprinting have not been reported elsewhere. The reuse of silicon masters offers potential for production of low cost SERS substrates. The SERS activity and reproducibility of nanotriangles are illustrated and a consistent average enhancement factor of up to ~2.9 × 1011, which is the highest value reported for a patterned SERS substrate, is achieved. |
| Databáze: | OpenAIRE |
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