Femtosecond studies of photoemission from doubly excited surface plasmons in silver nanoparticles on graphite

2000 ◽  
Author(s):  
M. Merschdorf ◽  
W. Pfeiffer ◽  
A. Thon ◽  
S. Voll ◽  
G. Gerber
Keyword(s):  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Doubly Excited

scholarly journals A P/N type silicon semiconductor loaded with silver nanoparticles used as a SERS substrate to selectively drive the coupling reaction induced by surface plasmons

2020 ◽  
Vol 2 (8) ◽  
pp. 3460-3466
Author(s):  
Yuanchun Zhao ◽  
Qijia Zhang ◽  
Liping Ma ◽  
Peng Song ◽  
Lixin Xia
Keyword(s):  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Coupling Reaction ◽  
Optoelectronic Properties ◽  
Semiconductor Materials ◽  
Sers Substrate ◽  
Type Silicon

Semiconductor materials are favoured in the field of SERS catalysis due to their unique optoelectronic properties.

Red-shifting the surface plasmon resonance of silver nanoparticles for light trapping in solar cells

2008 ◽  
Vol 1101 ◽  
Author(s):  
Fiona Jean Beck ◽  
Kylie Catchpole
Keyword(s):  
Silver Nanoparticles ◽  
Refractive Index ◽  
Solar Cells ◽  
Surface Plasmon Resonance ◽  
Surface Plasmons ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Light Trapping ◽  
Chemical Vapour ◽  
Pressure Chemical

AbstractSurface plasmons in metallic nanoparticle arrays have been shown to increase the absorption of an underlying silicon substrate. This has wide ranging applications, not least in the photovoltaic industry. Incident light excites localised surface plasmons in the silver nanoparticles and is coupled into the silicon in trapped modes. The radiative behaviour of the nanoparticle film is changed by the proximity of a high refractive index surface, causing radiation to be directed into the silicon and providing a light-trapping layer. We investigate a simple and effective method of tuning the surface plasmon resonance frequency, and hence the spectral region at which the absorption enhancement is seen, by varying the underlying dielectric. The particle geometry and distribution are modified by the surface conditions provided by the dielectric layer, and both this and the change in refractive index alter the resonance position. Three common dielectrics used in the photovoltaic industry were investigated as surfaces on which to form arrays of self-assembled silver nanoparticles atmospheric pressure chemical vapour deposited titanium dioxide (APCVD TiO2), low pressure chemical vapour deposited silicon nitride (LPCVD Si3N4) and thermally grown silicon dioxide (SiO2). We show, by optical and electrical measurements, that the red-shifted resonances produced by nanoparticle films on APCVD TiO2, and LPCVD Si3N4 with relatively high refractive indices, correspond to an increase in optical absorption and external quantum efficiency in thin, crystalline solar cells at longer wavelengths.

Shape effects on surface plasmons in spherical, cubic, and rod-shaped silver nanoparticles

2016 ◽  
Vol 122 (4) ◽  
Author(s):  
Dimitrios C. Tzarouchis ◽  
Pasi Ylä-Oijala ◽  
Tapio Ala-Nissila ◽  
Ari Sihvola
Keyword(s):  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Shape Effects

scholarly journals Monitoring the dispersion and agglomeration of silver nanoparticles in polymer thin films using localized surface plasmons and Ferrell plasmons

2020 ◽  
Vol 116 (10) ◽  
pp. 103105 ◽  
Author(s):  
Rafael C. Hensel ◽  
Murilo Moreira ◽  
Antonio Riul ◽  
Osvaldo N. Oliveira ◽  
Varlei Rodrigues ◽  
...  
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Polymer Thin Films ◽  
Localized Surface Plasmons

Ultrafast Dephasing of Surface Plasmons in Silver Nanoparticles: The Role of Capping Agents

2011 ◽  
Author(s):  
Euclides Almeida ◽  
Augusto C. L. Moreira ◽  
A. M. Brito-Silva ◽  
Leonardo de S. Menezes ◽  
André Galembeck ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Capping Agents
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