Beaded Cobalt Oxide Nanoparticles along Carbon Nanotubes: Towards More Highly Integrated Electronic Devices


  • This research was supported by the National Natural Science Foundation of China (NSFC), the Major State Basic Research Development Program, and the Chinese Academy of Sciences.


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Nanoparticles strung on nanotubes, like a beaded necklace (see Figure), have been synthesized by a simple low temperature supercritical solution method. That the crystalline spherical Co3O4 nanoparticles on multiwalled carbon nanotubes are a step towards high-density integrated nanometer-scale functional devices is demonstrated by the fabrication of Schottky junction diodes from individual “beaded” nanotubes.