Electrochemically deposited silver particles for surface enhanced Raman spectroscopy

Vosgröne, T.; Meixner, Alfred J.; Anders, A.; Dietz, H.; Sandmann, G.; Plieth, W.

doi:10.1016/j.susc.2004.04.064

Cited by 13 publications

(9 citation statements)

References 23 publications

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“…Similar results have been also showed in Ref. 13, i.e., the intense signals are localized at aggregates of silver particles, while single particles show no signal at all. The etching depth has been optimized as 110 nm to obtain the largest concentration of particles.…”

Section: Ion-exchange With Heat Treatmentsupporting

confidence: 90%

Sers-Active Silver Nanoparticles in Ion-Exchanged Glass

Jaakola

Säynätjoki

et al. 2010

J. Nonlinear Optic. Phys. Mat.

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We study synthesis and SERS activity of glass-embedded ion-exchanged silver nanoparticles formed by two different methods. Silver-sodium ion-exchange process with heat treatment was utilized on commercial microscope slides, while masked ion-exchange technique was performed on glass Corning 0211. The distribution of particles was studied by absorption spectroscopy and atomic force microscopy. After etching the glass surface to expose the particles, SERS performance of these particles was investigated with micro-Raman spectroscopy using Rhodamine 6G as the analyte.

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Section: Ion-exchange With Heat Treatmentsupporting

confidence: 90%

Sers-Active Silver Nanoparticles in Ion-Exchanged Glass

Jaakola

Säynätjoki

et al. 2010

J. Nonlinear Optic. Phys. Mat.

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“…Thus preparation of Ag NPs with controlled morphology has attracted much interest. To date, numerous methods have been developed to prepare Ag NPs, including chemical reduction, electrochemistry, laser deposition, γ -ray irradiation, electron beam irradiation and hydrothermal methods [5][6][7][8][9][10][11]. Among them, chemical reduction with suitable surfactant and polymer is simple and efficient for controlling the shape and size of Ag NPs, and is widely used.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Spherical and Triangular Silver Nanoparticles by a Convenient Method

Jia

Tang

et al. 2012

Integrated Ferroelectrics

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Silver nanoparticles with spherical and triangular shapes were prepared in a convenient way (simple and rapid) at room temperature by chemical reduction method. The obtained Ag NPs were characterized by transmission electron microscopy and UV-visible spectrophotometer. The results indicated that, as silver nitrate, polyvinyl pyrrolidone and sodium borohydride were used as reagent, protective agent and reducing agent respectively, spherical and monodisperse Ag NPs with their sizes about 9.0 nm were prepared. In addition, using hydrazine hydrate as reducing agent in stead of sodium borohydride, Ag NPs with triangular shape and edge lengths in the range of 50-200 nm were obtained. It was speculated that, these triangular Ag NPs were transformed from small quasi-spherical Ag NPs formed at the beginning of the reaction. Ostward ripening is most likely the driving force for the shape evolution.

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“…Over the last decades, plasmonic nanoparticles have attracted interest because of their localized field enhancement properties. The localized field can be exploited, eg, for amplifying Raman and fluorescence scattering …”

Section: Introductionmentioning

confidence: 99%

“…The localized field can be exploited, eg, for amplifying Raman and fluorescence scattering. [1][2][3][4] The effect of the shape and the size of nanoparticles on the performance of the device has been studied thoroughly in literature. [5][6][7] Most simulations investigate only the impact of a limited number of geometric parameters on the quantity of interest, whereas any change of shape can have a significant effect on the behavior of the structure.…”

Section: Introductionmentioning

confidence: 99%

Shape sensitivity analysis of metallic nano particles

Sargheini

Paganini

Hiptmair

et al. 2016

Int J Numerical Modelling

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Shape sensitivity measures the impact of small perturbations of geometric features of a problem on certain quantities of interest. The shape sensitivity of PDE (partial differential equation) constrained output functionals is derived with the help of shape gradients. In electromagnetic scattering problems, the standard procedure of the Lagrangian approach cannot be applied because of solution of the state problem is complex valued. We derive a closed‐form formula of the shape gradient of a generic output functional constrained by Maxwell's equations. We employ cubic B‐splines to model local deformations of the geometry and derive sensitivity probings over the surface of the scatterer. We also define a sensitivity representative function over the surface of the scatterer on the basis of local sensitivity measurements. Several numerical experiments are conducted to investigate the shape sensitivity of different output functionals for different geometric settings.

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Electrochemically deposited silver particles for surface enhanced Raman spectroscopy

Cited by 13 publications

References 23 publications

Sers-Active Silver Nanoparticles in Ion-Exchanged Glass

Sers-Active Silver Nanoparticles in Ion-Exchanged Glass

Preparation of Spherical and Triangular Silver Nanoparticles by a Convenient Method

Shape sensitivity analysis of metallic nano particles

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