scholarly journals Arrays of Size-Selected Metal Nanoparticles Formed by Cluster Ion Beam Technique

MRS Advances ◽  
2018 ◽  
Vol 3 (45-46) ◽  
pp. 2771-2776 ◽  
Author(s):  
Florian A. Ceynowa ◽  
Manohar Chirumamilla ◽  
Vladimir A. Zenin ◽  
Vladimir N. Popok
Keyword(s):  
Ion Beam ◽  
Cluster Beam ◽  
Coinage Metal ◽  
Plasmonic Structures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Cluster Ion ◽  
Enhanced Raman Scattering ◽  
Cluster Beam Deposition ◽  
Beam Technique

ABSTRACTDeposition of size-selected copper and silver nanoparticles (NPs) on polymers using cluster beam technique is studied. It is shown that ratio of particle embedment in the film can be controlled by simple thermal annealing. Combining electron beam lithography, cluster beam deposition, and heat treatment allows to form specific patterns (arrays) of metal NPs on polymer films. Plasticity and flexibility of polymer host and specific properties added by coinage metal NPs open a way for different applications of such composite materials, in particular, for the formation of plasmonic structures with required configurations which can be applied for wave-guiding, resonators, in sensor technologies, and surface enhanced Raman scattering.

Effect of Graphene Coating on SERS Performance of Plasmonic Nanostructures Based on Silvered Porous Silicon

2019 ◽  
Vol 18 (03n04) ◽  
pp. 1940087
Author(s):  
A. Panarin ◽  
P. Mojzes ◽  
B. Ranishenka ◽  
S. Terekhov
Keyword(s):  
Plasmonic Nanostructures ◽  
Spectral Measurements ◽  
Sers Signal ◽  
Protective Layers ◽  
Graphene Coating ◽  
Plasmonic Structures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
The Stability

The degradation of the Surface-enhanced Raman scattering (SERS) signal under laser illumination during spectral measurements is typically observed. To improve the stability of the SERS spectra intensity, hybrid plasmonic structures involving graphene-based protective layers were formed. An observation of the time evolution of the characteristic peak from analyte molecules indicates that the graphene coating can be used to improve the stability of the SERS signal.

scholarly journals Bioscaffold arrays decorated with Ag nanoparticles as a SERS substrate for direct detection of melamine in infant formula

RSC Advances ◽  
2019 ◽  
Vol 9 (38) ◽  
pp. 21771-21776 ◽  
Author(s):  
Nan Zhao ◽  
Hefu Li ◽  
Cunwei Tian ◽  
Yanru Xie ◽  
Zhenbao Feng ◽  
...  
Keyword(s):  
High Performance ◽  
Direct Detection ◽  
Three Dimensional ◽  
Sers Substrate ◽  
Sers Substrates ◽  
Plasmonic Structures ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Performance Surface

Three-dimensional (3D) plasmonic structures have been intensively investigated as high performance surface enhanced Raman scattering (SERS) substrates.

scholarly journals Design of Surface Enhanced Raman Scattering (SERS) Nanosensor Array

Sensors ◽  
2020 ◽  
Vol 20 (18) ◽  
pp. 5123
Author(s):  
Yaakov Mandelbaum ◽  
Raz Mottes ◽  
Zeev Zalevsky ◽  
David Zitoun ◽  
Avi Karsenty
Keyword(s):  
Raman Scattering ◽  
Real Time ◽  
Chemical Reaction ◽  
Focused Ion Beam ◽  
Ion Beam ◽  
Surface Enhanced Raman Scattering ◽  
Spatially Resolved ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

An advanced Surface-Enhanced Raman Scattering (SERS) Nanosensor Array, dedicated to serve in the future as a pH imager for the real-time detection of chemical reaction, is presented. The full flow of elementary steps—architecture, design, simulations, fabrication, and preliminary experimental results of structural characterization (Focused Ion Beam (FIB), TEM and SEM)—show an advanced SERS pixel array that is capable of providing spatially resolved measurements of chemical pH in a fluid target that became more than desirable in this period. Ultimately, the goal will be to provide real-time monitoring of a chemical reaction. The pixels consist of a nanostructured substrate composed of an array of projections or cavities. The shape of the nanostructures and the thickness of the metallic (Ag or Au) layer can be tuned to give maximal enhancement at the desired wavelength. The number and arrangement of nanostructures is optimized to obtain maximal responsivity.

Stabilization of Metastable Zinc-Blende Phase MnTe by Ionized Cluster Beam Deposition

1992 ◽  
Vol 279 ◽  
Author(s):  
K. Ando ◽  
K. Takahashi ◽  
Y. Takeuchi
Keyword(s):  
Ion Beam ◽  
High Energy ◽  
Cluster Beam ◽  
Bulk Crystals ◽  
Film Properties ◽  
Zinc Blende ◽  
Cluster Ion ◽  
Cluster Beam Deposition ◽  
Acceleration Voltage ◽  
Beam Deposition

ABSTRACTThe ionized cluster beam (ICB) deposition was use to stabilize the metastable zinc-blende (ZB) MnTe films directly on GaAs (100) substrates at 300 °C with MnTe cluster ion beam. Influences of the ionization and the acceleration voltage on film properties were investigated by the reflection high-energy electron diffraction (RHEED), optical reflection, Raman scattering, and photoluminescence. The ZB-MnTe was stabilized by 3kV acceleration of the MnTe cluster beam. These results showed that the ICB deposition is useful to get compounds having crystalline phase different from the structures observed io equilibrium-grown bulk crystals.

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