Significant field enhancements in an individual silver nanoparticle near a substrate covered with a thin gain film

Nanoscale ◽  
2014 ◽  
Vol 6 (22) ◽  
pp. 13994-14001 ◽  
Author(s):  
Jinhong Xian ◽  
Linchun Chen ◽  
Hanben Niu ◽  
Jule Qu ◽  
Jun Song
Keyword(s):  
Thin Film ◽  
Silver Nanoparticle ◽  
Local Field ◽  
Metallic Nanoparticle ◽  
Close Proximity ◽  
Gain Material ◽  
Field Enhancements

In this paper, we propose a method to significantly enhance the local-field of a gap plasmonic system by placing a metallic nanoparticle in close proximity to a substrate covered with a thin film using a gain material (∼100 nm thickness).

scholarly journals Absorption enhancement in thin film solar cells with bilayer silver nanoparticle arrays

2018 ◽  
Vol 2 (5) ◽  
pp. 055032 ◽  
Author(s):  
Shuyuan Zhang ◽  
Min Liu ◽  
Wen Liu ◽  
Yusheng Liu ◽  
Zhaofeng Li ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Silver Nanoparticle ◽  
Thin Film Solar Cells ◽  
Absorption Enhancement ◽  
Nanoparticle Arrays

scholarly journals DNA-Biofunctionalization of CTAC-Capped Gold Nanocubes

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1119 ◽  
Author(s):  
Nicole Slesiona ◽  
Sophie Thamm ◽  
H. Lisa K. S. Stolle ◽  
Viktor Weißenborn ◽  
Philipp Müller ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Cetyltrimethylammonium Bromide ◽  
Clinical Diagnostics ◽  
Enhanced Fluorescence ◽  
Nanoparticle Surface ◽  
Modified Dna ◽  
Close Proximity ◽  
Biological Recognition ◽  
High Concentrations ◽  
Field Enhancements

Clinical diagnostics and disease control are fields that strongly depend on technologies for rapid, sensitive, and selective detection of biological or chemical analytes. Nanoparticles have become an integral part in various biomedical detection devices and nanotherapeutics. An increasing focus is laid on gold nanoparticles as they express less cytotoxicity, high stability, and hold unique optical properties with the ability of signal transduction of biological recognition events with enhanced analytical performance. Strong electromagnetic field enhancements can be found in close proximity to the nanoparticle that can be exploited to enhance signals for e.g., metal-enhanced fluorescence or Raman spectroscopy. Even stronger field enhancements can be achieved with sharp-edged nanoparticles, which are synthesized with the help of facet blocking agents, such as cetyltrimethylammonium bromide/chloride (CTAB/CTAC). However, chemical modification of the nanoparticle surface is necessary to reduce the particle’s cytotoxicity, stabilize it against aggregation, and to bioconjugate it with biomolecules to increase its biocompatibility and/or specificity for analytical applications. Here, a reliable two-step protocol following a ligand exchange with bis (p-sulfonatophenyl) phenyl phosphine (BSPP) as the intermediate capping-agent is demonstrated, which results in the reliable biofunctionalization of CTAC-capped gold nanocubes with thiol-modified DNA. The functionalized nanocubes have been characterized regarding their electric potential, plasmonic properties, and stability against high concentrations of NaCl and MgCl2.

Synthesis of graphene oxide–silver nanocomposite with photochemically grown silver nanoparticles to use as a channel material in thin film field effect transistors

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107811-107821 ◽  
Author(s):  
K. Sarkar ◽  
Kalyan Jyoti Sarkar ◽  
P. Banerji
Keyword(s):  
Thin Film ◽  
Silver Nanoparticles ◽  
Graphene Oxide ◽  
Silver Nanoparticle ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Charge Carriers ◽  
Silver Nanocomposite

The transport of charge carriers in a graphene oxide–silver nanoparticle composite is found to be controlled by nanoparticle dose.

Effective local-field confinement of silver nanoparticle dimer arrays

2010 ◽  
Author(s):  
Li Yao ◽  
Xufeng Li ◽  
Tiangang Yang ◽  
Shi Pan ◽  
Maodu Chen
Keyword(s):  
Silver Nanoparticle ◽  
Local Field
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