Fluorescence Enhancement by the Dipole and Quadrupole Surface Plasmons of Silver Nanoparticles

2020 ◽  
Author(s):  
Daedu Lee ◽  
Junghyun Song ◽  
Gyeonghyun Song ◽  
Yoonsoo Pang
Keyword(s):  
Silver Nanoparticles ◽  
Surface Plasmons ◽  
Fluorescence Enhancement

Fluorescence Enhancement of Modified Silver Nanoparticles

2011 ◽  
Vol 11 (11) ◽  
pp. 9721-9724 ◽  
Author(s):  
Meicen Liu ◽  
Zhenglong Zhang ◽  
Gaining Liu ◽  
Jun Dong ◽  
Yu Sun ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement

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.

Integral fluorescence enhancement by silver nanoparticles controlled via PMMA matrix

2011 ◽  
Vol 284 (1) ◽  
pp. 494-497 ◽  
Author(s):  
Yan Jie ◽  
Lu Yonghua ◽  
Wang Pei ◽  
Ming Hai
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement ◽  
Pmma Matrix

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

Research on Fluorescence Enhancement Effect of Silver Nanoparticles on Zinc Porphyrin

2015 ◽  
Vol 35 (7) ◽  
pp. 0730001
Author(s):  
王静静 Wang Jingjing ◽  
刘莹 Liu Ying ◽  
吴莹 Wu Ying ◽  
孙松 Sun Song
Keyword(s):  
Silver Nanoparticles ◽  
Fluorescence Enhancement ◽  
Enhancement Effect ◽  
Zinc Porphyrin

scholarly journals Fluorescence Enhancement Using Bimetal Surface Plasmon-Coupled Emission from 5-Carboxyfluorescein (FAM)

Micromachines ◽  
2018 ◽  
Vol 9 (9) ◽  
pp. 460 ◽  
Author(s):  
Nhu Tran ◽  
Kieu Trinh ◽  
Jun-Ho Lee ◽  
Won Yoon ◽  
Heongkyu Ju
Keyword(s):  
Surface Plasmons ◽  
Surface Plasmon ◽  
Coefficient Of Variation ◽  
Fluorescence Enhancement ◽  
Fluorescence Emission ◽  
High Reproducibility ◽  
Practical Applications ◽  
Biochemical Assays ◽  
Gold Silver ◽  
Spectral Channels

We demonstrate the enhancement of fluorescence emission from a dye, 5-carboxyfluorescein (FAM), which couples with surface plasmons at the spectral channels of excitation and emission. Experiments and calculations revealed that bimetallic (gold-silver) plasmon, as compared to the monometallic ones, allowed such coupling to be enhanced, at both the spectral channels. We achieved the maximum fluorescence enhancement level of 46.5-fold, with markedly high reproducibility (coefficient of variation ~ 0.5%) at a FAM concentration of 10 nM. We also found that higher fluorescence enhancement was more likely to be reproducible. This encourages the use of this technology for practical applications in fluorescence-based biochemical assays. Moreover, we investigated a FAM concentration-dependent enhancement of fluorescence. It was found that fluorescence enhancement decreased and saturated at above 10 nM concentration possibly due to partial photo-bleaching of FAM molecules.

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