J4 ›› 2013, Vol. 10 ›› Issue (3): 368-376.doi: 10.1016/S1672-6529(13)60232-2

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  • 收稿日期:2012-11-12 修回日期:2013-06-12 出版日期:2013-07-10 发布日期:2013-07-10

Mesoscopic Models of Plants Composed of Metallic Nanowires

Galina K. Strukova, Gennady V. Strukov, Evgeniya Yu. Postnova, Alexander Yu. Rus   

  1. Institute of Solid State Physics, Russian Academy of Sciences, 142432 Chernogolovka, Russia
  • Received:2012-11-12 Revised:2013-06-12 Online:2013-07-10 Published:2013-07-10
  • Contact: Galina K. Strukova E-mail:strukova@issp.ac.ru

关键词: templated growth, pulse electroplating, self-assembly, metallic mesostructures, nanowires, fractal branching, biomimetic method

Abstract:

Various metallic structures of complex shape resembling living plant organisms (biomimetics) are produced as a result of self-assembly of nanowires growing on porous membranes in the course of pulse current electrodeposition. These structures occur if the electroplating is continued after the nanowires appear on the membrane surface. By varying the membrane ge-ometry, pulse current electroplating parameters, and alternating electrodeposition from two baths composed of a variety of electrolytes, diverse models were fabricated, including a hollow container with a wall thickness of 10 nm – 20 nm. This biomimetic method suggests an analogy between the shape-forming processes of plants and their metallic models. Nanostruc-tured mesostructures of various metals (Ag, Pd, Ni), alloys (PdNi, PbIn) and hybrid structures (PdNi/Pb, PdNi/PbIn) were obtained. They can be of interest for fundamental research (self-assembly, morphogenesis) as well as for applications in nanotechnology (catalysis, nanoplasmonics, medicine, superhydrophobic surfaces).

Key words: templated growth, pulse electroplating, self-assembly, metallic mesostructures, nanowires, fractal branching, biomimetic method