Nanostructured and nanopatterned gold surfaces: application to the surface-enhanced Raman spectroscopy
| العنوان: | Nanostructured and nanopatterned gold surfaces: application to the surface-enhanced Raman spectroscopy |
|---|---|
| المؤلفون: | A. D’Orlando, Bernard Humbert, S. Martin, T. Makiabadi, Audrey Bouvrée, Guy Louarn, Jean-Yves Mevellec |
| المساهمون: | Institut des Matériaux Jean Rouxel (IMN), Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Ecole Polytechnique de l'Université de Nantes (EPUN), Université de Nantes (UN)-Université de Nantes (UN) |
| المصدر: | Gold bulletin : a quarterly review of research on gold and its applications in industry Gold bulletin : a quarterly review of research on gold and its applications in industry, World Gold Council, 2013, 46 (4), pp.283. ⟨10.1007/s13404-013-0127-4⟩ |
| بيانات النشر: | Springer Science and Business Media LLC, 2013. |
| سنة النشر: | 2013 |
| مصطلحات موضوعية: | Materials science, Nanostructure, Surface-enhanced Raman scattering . SERS . Gold nanoparticles . Nanolithography, Nanotechnology, 02 engineering and technology, Surface-enhanced Raman spectroscopy, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Inorganic Chemistry, symbols.namesake, Nanolithography, Colloidal gold, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], symbols, General Materials Science, Surface plasmon resonance, 0210 nano-technology, Raman spectroscopy, Raman scattering, Electron-beam lithography |
| الوصف: | International audience; Surface-enhanced Raman spectroscopy (SERS) has enormous potential for a range of applications where high sensitivity needs to be combined with good discrimination between molecular targets. However, the SERS technique has trouble finding its industrial development, as was the case with the surface plasmon resonance technology. The main reason is the difficulty to produce stable, reproducible, and highly efficient substrates for quantitative measurements. In this paper, we report a method to obtain two-dimensional regular nanopatterns of gold nanoparticles (AuNPs). The resulting patterns were evaluated by SERS. Our bottom-up strategy was divided into two steps: (a) nanopatterning of the substrate by e-beam lithography and (b) electrostatic adsorption of AuNPs on functionalized substrates. This approach enabled us to highlight the optimal conditions to obtain monolayer, rows, or ring of AuNPs, with homogeneous distribution and high density (800 AuNPs/μm2). The nanostructure distributions on the substrates were displayed by scanning electron microscopy and atomic force microscopy images. Optical properties of our nanostructures were characterized by visible extinction spectra and by the measured enhancements of Raman scattering. Finally, we tried to demonstrate experimentally that, to observe a significant enhancement of SERS, the gold diffusers must be extremely closer. If electron beam lithography is a very attractive technique to perform reproducible SERS substrates, the realization of pattern needs a very high resolution, with distances between nanostructures probably of less than 20 nm. |
| تدمد: | 2190-7579 0017-1557 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bf35d144f129fce845429abddd6998cTest https://doi.org/10.1007/s13404-013-0127-4Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....4bf35d144f129fce845429abddd6998c |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 21907579 00171557 |
|---|