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Direct Writing of Metal Nanoparticles by Localized Plasma Electrochemical Reduction of Metal Cations in Polymer Films

机译：通过局部等离子体电化学还原聚合物薄膜中金属阳离子直接写入金属纳米粒子

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摘要

A non-lithographic, dry approach to patterning metal nanoparticles is presented. Solutions of metal salt and polymer are spin-coated onto a substrate, dried, and exposed to a rastered microscale plasma operated at atmospheric pressure and room temperature. Interaction of the electrons in the plasma with the film results in electrochemical reduction of the metal cations to crystalline metal nanoparticles. The process is highly localized, making it possible to obtain microscale patterns of metal nanoparticles with line widths as small as -30 |im. We have applied this technique to a wide range of metals such as Ag, Au, Ft, Ir, and Ru, in various polymeric systems such as polyvinyl alcohol (PVA) and poly (methyl methacrylate) (PMMA). Overall, the approach allows the fabrication of transparent, flexible, patterned films of metal nanoparticles at low cost and high throughput for applications ranging from plasmonics to catalysis.
机译：提出了一种非光刻，干法构图金属纳米颗粒的方法。将金属盐和聚合物的溶液旋涂到基材上，干燥，然后暴露于在大气压和室温下操作的光栅化微尺度等离子体中。等离子体中电子与薄膜的相互作用导致金属阳离子电化学还原为结晶​​金属纳米颗粒。该过程高度局部化，从而有可能获得线宽小至30μm的金属纳米颗粒的微型图案。我们已将该技术应用于各种金属，如聚乙烯醇（PVA）和聚（甲基丙烯酸甲酯）（PMMA）中的各种金属，例如Ag，Au，Ft，Ir和Ru。总的来说，该方法允许以低成本和高通量制造透明，柔性，图案化的金属纳米颗粒薄膜，用于从等离激元到催化的各种应用。

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  • 来源
    《Advanced Functional Materials》 |2011年第11期|p.2155-2161|共7页
  • 作者

    Seung Whan Lee; Dong Liang; Xuan P. A. Gao; R. Mohan Sankaran;

  • 作者单位

    Department of Chemical Engineering Case Western Reserve University Cleveland, OH 44106 (USA);

    Department of Physics Case Western Reserve University Cleveland, OH 44106 (USA);

    Department of Physics Case Western Reserve University Cleveland, OH 44106 (USA);

    Department of Chemical Engineering Case Western Reserve University Cleveland, OH 44106 (USA);

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