Nanocrystalline cobalt oxides for carbon nanotube growth

Kun Guo; Ahalapitiya H. Jayatissa; Ambalangodage C. Jayasuriya

doi:10.1117/12.735285

11 October 2007 Nanocrystalline cobalt oxides for carbon nanotube growth

Kun Guo, Ahalapitiya H. Jayatissa, Ambalangodage C. Jayasuriya

Proceedings Volume 6768, Nanomaterials Synthesis, Interfacing, and Integrating in Devices, Circuits, and Systems II; 676808 (2007) https://doi.org/10.1117/12.735285
Event: Optics East, 2007, Boston, MA, United States

Abstract

Thin Films of nanocrystalline cobalt oxide were formed by sol-gel method. Structure, optical properties and surface properties of these films were investigated by numerous characterization techniques. These films were successfully fabricated on glass substrates below 500°C. . Micropatterns of cobalt oxide thin films were also fabricated on glass and silicon substrates by employing a lift-off method. Crystal size of these nanocrystalline cobalt films could be successfully controllable by varying the amount of cobalt precursors and number of layers. These films were used as the seeding layers for carbon nanotube growth in a CVD process By changing the concentration of monomer precursors in the solgel coating solutions, different size nanoclusters hence different size carbon nanotubes could be synthesized in CVD process. This method can be used for controlled growth of carbon nanotubes for many different applications. In this paper, detail of these experimental results will be presented.

Citation Download Citation

Kun Guo, Ahalapitiya H. Jayatissa, and Ambalangodage C. Jayasuriya "Nanocrystalline cobalt oxides for carbon nanotube growth", Proc. SPIE 6768, Nanomaterials Synthesis, Interfacing, and Integrating in Devices, Circuits, and Systems II, 676808 (11 October 2007); https://doi.org/10.1117/12.735285

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