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3D Multilayered Metamaterials with High Plasmonic Hotspot Density for Surface—Enhanced Raman Spectroscopy.
- Source :
- Coatings (2079-6412); May2023, Vol. 13 Issue 5, p844, 10p
- Publication Year :
- 2023
-
Abstract
- Three-dimensional (3D) plasmonic metamaterials have become a trend in the application of nanophotonic devices. In this paper, a convenient and inexpensive method for the design of 3D multilayer plasmonic metamaterials is constructed using a one-step self-shielded reactive-ion-etching process (OSRP) and a thermal evaporation system, which provides an efficient and low-cost method for the preparation of surface-enhanced Raman spectroscopy (SERS) substrates. The near-field enhancement of the 3D plasmonic metamaterials provides highly efficient electromagnetic resonance, and highly sensitive and uniform SERS sensing capabilities. The SERS detection results of rhodamine B (Rh. B) and rhodamine 6G (R6G) on this substrate show that the detection limit could reach 10<superscript>–13</superscript> mol/L, and the signal could give expression to excellent uniform stability. The results show that high sensitivity and high robustness SERS substrates can be prepared with high efficiency and low cost. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20796412
- Volume :
- 13
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Coatings (2079-6412)
- Publication Type :
- Academic Journal
- Accession number :
- 163950791
- Full Text :
- https://doi.org/10.3390/coatings13050844