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Researchers from Indian Institute of Science Provide Details of New Studies and Findings in the Area of Fullerenes

February 7, 2014

By a News Reporter-Staff News Editor at Science Letter -- Data detailed on Fullerenes have been presented. According to news reporting out of Bangalore, India, by NewsRx editors, research stated, "We report the growth of carbon nanoflakes (CNFs) on Si substrate by the hot filament chemical vapor deposition without the substrate bias or the catalyst. CNFs were grown using the single wall carbon nanotubes and the multiwall carbon nanotubes as the nucleation center, in the Ar-rich CH4-H-2-Ar precursor gas mixture with 1% CH4, at the chamber pressure and the substrate temperature of 7.5 Ton and 840 degrees C, respectively."

Our news journalists obtained a quote from the research from the Indian Institute of Science, "In the H-2-rich condition, CNF synthesis failed due to severe etch-removal of carbon nanotubes (CNTs) while it was successful at the optimized Ar-rich condition. Other forms of carbon such as nano-diamond or mesoporous carbon failed to serve as the nucleation centers for the CNF growth."

According to the news editors, the research concluded: "We proposed a mechanism of the CNF synthesis from the CNTs, which involved the initial unzipping of CNTs by atomic hydrogen and subsequent nucleation and growth of CNFs from the unzipped portion of the graphene layers."

For more information on this research see: Carbon nanoflake growth from carbon nanotubes by hot filament chemical vapor deposition. Carbon, 2014;67():704-711. Carbon can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, England. (Elsevier -; Carbon -

Our news journalists report that additional information may be obtained by contacting S.C. Sahoo, Indian Inst Sci, Dept. of Phys, Bangalore 560012, Karnataka, India. Additional authors for this research include D.R. Mohapatra, H.J. Lee, S.M. Jejurikar, I. Kim, S.C. Lee, J.K. Park, Y.L. Baik and W.S. Lee (see also Fullerenes).

Keywords for this news article include: Asia, India, Bangalore, Fullerenes, Nanotechnology, Carbon Nanotubes, Emerging Technologies, Chemical Vapor Deposition

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Source: Science Letter

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