Method for preparing optical thin film with gold silver nanometer particle and dispersal oxide

A nanoparticle and oxide film technology, which is applied in metal material coating process, ion implantation plating, coating, etc., can solve the problem of rare gold-silver composite metal particle dispersed oxide film, and achieve excellent nonlinear characteristics, evenly dispersed effect

Inactive Publication Date: 2005-09-21
UNIV OF SCI & TECH BEIJING
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However, our patent applications and research are limited to a gold nanoparticle or silver nanoparticle dis...

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  • Method for preparing optical thin film with gold silver nanometer particle and dispersal oxide
  • Method for preparing optical thin film with gold silver nanometer particle and dispersal oxide

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[0014] Au of the present invention x Ag 1-x / SiO 2 The gold and silver nanoparticles dispersed oxide multilayer film of the system is composed of several layers or even hundreds of layers of gold and silver nano metal particle layers and oxides. The diameter of gold and silver nanoparticles is 2-50nm, and the thickness of the oxide layer is several nanometers to tens of nanometers. figure 2 Represents the nano-layered morphology of the gold-silver multilayer film (the Au nanoparticle layer is 3 layers, the Ag nanoparticle layer is 3 layers, and the SiO nanoparticle layer is 3 layers. 2 Layer is 7 layers) cross-sectional transmission electron micrographs. Such as figure 2 As shown, the nano-metal particle layer is completely parallel and evenly spaced in a large area, and the thickness of the entire film is 70nm. Of which SiO 2 The thickness of the layer is 10 nm and the diameter of the gold and silver nanoparticles is 6-8 nm. The thin film is prepared by sputtering te...

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Abstract

The invention provides a method for making an optical film of scattering oxidants by gold and silver nanometer particles, belonged to the art of metal nanometer particle and inorganic non-metallic material composite technique. Au, Ag and oxidants as the three sputtering targets settle in the sputtering equipment, in which positioned a blinder in front of each sputtering target and base plate, controlled independently the sedimentation velocities of the metal and oxidants, to prepare composite films of gold and silver pure metal nanometer scattering oxidants, which is of nano layered structure; the specific steps are as follows: preparing a nanometer particle monolayer film of Au or Ag, then depositing an oxide film, and another nanometer monolayer film of Au or Ag, then another oxide film. Alternate depositing according to such priority to get a composite film of gold and silver pure metal nanometer scattering oxidants, which is of nano layered structure. The advantage lies in the excellent non-linear optical characteristic.

Description

technical field [0001] The invention belongs to the technical field of composite materials of metal nanoparticles and inorganic non-metallic materials, and in particular provides a design and preparation process of gold and silver pure metal nanoparticles dispersed oxide multilayer nonlinear optical film. Background technique [0002] Nano-metal particles dispersed oxide film, due to the surface effect and quantum size effect of metal nanoparticles are very significant, surface plasmon resonance occurs under the interaction of electrons and light near the surface of nano-metal particles, and selectively absorbs and transmits incident light waves. Pass. Functional thin films with such nonlinear optical properties have broad application prospects in the field of optical communications as optical wave splitters and optical switches. [0003] In order to obtain strong nonlinear optical effects, it is generally achieved by changing the size, shape, dispersion concentration and m...

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Application Information

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IPC IPC(8): C23C14/06C23C14/34C23C14/54
Inventor 张波萍焦力实张芸刘玮书
Owner UNIV OF SCI & TECH BEIJING
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