In a method of producing a metal structure by photoreducing metal ion, a substance capable of suppressing growth of metal crystal is added to a medium in which metal ion is dispersed to prevent growth of the metal crystal produced by photoreduction of the metal ion, thereby processing resolution of a metal structure formed of the metal crystal is improved.

Photoreduction processing method of three-dimensional metal nanostructure

The invention discloses a dendritic nano silver catalyst and a preparing method and an application thereof; the preparation method of the dendritic nano silver catalyst comprises the following steps: dissolving silver nitrate solids in an alizarin red dye aqueous solution to obtain a mixed reaction liquid, illuminating the obtained mixed reaction liquid with visible light, keeping air circulation, after the reaction is finished, centrifuging the solution to obtain a black concentrated liquid, drying the black concentrated liquid, and thus obtaining the dendritic nano silver catalyst. The visible light is adopted for preparation, and the nano silver prepared by the method is dendritic in shape, is relatively regular in shape, and can be applied in bacteria resistance, catalysis, electric conduction and other many fields.

Dendritic nano silver catalyst and preparing method and application thereof

A laser micro/nano fabrication system (400) for processing a metal ion solution is described. The system (400) includes a laser light source (1, 2) providing a first laser beam having a first wavelength and a second laser beam having a second wavelength being different from the first wavelength. The first wavelength is capable of inducing two-photon absorption effects in the metal ion solution to reduce the metal ions to metal nanoparticles. The first laser beam has a pulse width in the range of nanosecond to femtosecond and the second laser beam is a continuous wave laser beam being capable of inducing an optical tweezer effect on the metal nanoparticles. The system (400) also includes an optical focusing assembly (18, 19, 20) for focusing the first laser beam and the second laser beam to the same focal point, and a computer controlled micromovement stage (21).

Laser micro/nano fabricating system and method for processing a metal ion solution

To provide a power generation element that can suppress an early decrease in power generation efficiency and a manufacturing method of the same.SOLUTION: The method includes a production step of producing nanoparticles 141 dispersed in a solvent or an organic solvent using a femtosecond pulsed laser, a first electrode portion forming step of forming a first electrode portion 13a on a first substrate 11, a second electrode portion forming step of forming a second electrode portion 13b on a second substrate 12, and a joining step of joining the first substrate 11 and the second substrate 12 in a state where the solvent or the organic solvent is sandwiched between the first electrode portion 13a and the second electrode portion 13b.SELECTED DRAWING: Figure 1

Power generation element and manufacturing method of the same

PROBLEM TO BE SOLVED: To provide a photoreduction method for metal complex ions where strict controllability is not required in the control of an exposure, further, the size of the produced metal structure can be controlled, and also, there is no anxiety of reducing the spatial resolution in the size of the produced metal structure. SOLUTION: In the photoreduction method for metal complex ions where laser light is condensed and emitted on a metal complex ion-dispersed body dispersed into a material, thus the metal complex ions are photoreduced, so as to produce a metal structure, prescribed pigment is added to the material in which the metal complex ion-dispersed body is dispersed, and the laser light is condensed and emitted on the material to which the prescribed pigment is added. COPYRIGHT: (C)2007,JPO&INPIT

Photoreduction method for metal complex ions

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Photoreduction method for metal complex ions