Geometry dependent features of optically induced forces between silver nanoparticles

Article Abstract:

The discrete-dipole approximation (DDA) based method for computing optical forces was used to explore geometry dependent aspects of the light induced interactions between pairs of silver nanoparticles, including the influence of particle shape, relative positioning of the particles, and incident field orientation. The results show that the frequency dependence of the forces are strongly dependent on a number of geometrical properties of the target-field system and that the incident field orientation, direction of propagation, and particle shape all exert an important influence over the interaction.

Optical properties, Approximation theory, Approximation, Nanoparticles

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Thermal metallization of silver stearate-coated nanoparticles owing to the destruction of the shell structure

Article Abstract:

Heated states of silver nanoparticles by means of UV-vis ad FT-IR spectroscopy, scanning electron microscopy, thermogravimetric analysis, difference thermogravimetric analysis and electrochemical techniques is reported. Nanoparticles composed of a silver stearate shell and a silver core became metallic bulk silver by heating at a temperature lower than the melting point of silver metal.

Thermal properties, Fourier transform infrared spectroscopy, Electrochemical analysis

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