118results about How to "Ability to inhibit migration" patented technology

The invention discloses a preparation method of a heat stability-enhanced porous silver-magnesium-aluminum alloy film, and relates to the technical field of photoelectric materials. The preparation method comprises the following steps: firstly preparing a silver-magnesium-aluminum alloy film through a thin film deposition technology, wherein the silver-magnesium-aluminum alloy film is prepared from the following chemical components in percentage by mass: 50 to 60 percent of a magnesium element, 3 to 10 percent of an aluminum element and 30 to 47 percent of a silver element; and then corroding active metals through dealloying reaction liquid, thus forming a nano porous structure which takes silver as a framework and is doped with a little of aluminum and magnesium. After being subjected to high temperature treatment, the porous silver-magnesium-aluminum alloy film prepared through the preparation method still can keep the porous structure, so that a relatively wide absorption spectrum and a relatively good absorption effect can be kept. The preparation process is simple, the repetitiveness is high, and the cost is low; the shortcoming in the heat stability of a porous silver-based film in the prior art can be overcome; and actual popularization and application of the porous silver-based film are facilitated.