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Advanced Materials

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.


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.

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