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    • 41. 发明公开
    • Process for preparing metal coatings from liquid solutions utilizing cold plasma
    • 一种用于通过冷等离子体的装置产生从液体溶液的金属涂层的方法
    • EP1323846A3
    • 2004-10-20
    • EP02258609.3
    • 2002-12-13
    • AMT Holdings, Inc.
    • Conover, Stephen P.Sharma, Ashok K.
    • C23C18/14
    • C23C18/08C23C18/14
    • A method for depositing metals, metal blends and alloys onto substrate surfaces, including microporous substrates utilizing a plasma operation undertaken at room temperature. In the process, a liquid solution of a monomer or comonomer precursor having a metallic component is utilized to wet the surface of the substrate, with the solvent portion thereafter being removed to leave the substrate surface coated with a dry deposit. The coated substrate is then introduced into a plasma reaction chamber with RF energy being applied across spaced electrodes to create a plasma glow along with the introduction of a plasma supporting gas. The substrate is exposed to the plasma glow for conversion of the precursor to dissociated form to create a deposit consisting essentially of the metallic component in elemental form as a cohesive film on the substrate surface. Preferred metals include such noble metals as platinum, gold and silver, as well as other metals. Preferred precursors include platinum hexafluoro-acetylacetonate, (trimethyl) methylcyclopentadienyl platinum, dimethyl (acetylacetonate) gold, and trimethyl phosphine (hexafluoroacetyl acetonate) silver.