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Carbon nanotubes overgrown and ingrown with nanocrystalline diamonddeposited by different CVD plasma systems

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    0438612 - FZÚ 2015 RIV DE eng J - Journal Article
    Varga, Marián - Vretenár, V. - Ižák, Tibor - Skákalová, V. - Kromka, Alexander
    Carbon nanotubes overgrown and ingrown with nanocrystalline diamonddeposited by different CVD plasma systems.
    Physica Status Solidi B. Roč. 251, č. 12 (2014), s. 2413-2419. ISSN 0370-1972. E-ISSN 1521-3951
    R&D Projects: GA ČR(CZ) GBP108/12/G108; GA MŠMT(CZ) 7AMB14SK037
    Institutional support: RVO:68378271
    Keywords : carbon nanotubes * chemical vapour deposition * composites * gas composition * nanocrystalline diamond
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 1.469, year: 2014

    In this work we investigate the growth of diamond film on a porous single-wall carbon nanotubes (SWNT) paper by employing three different systems: plasma-assisted hot filament, focused microwave plasma and linear antenna microwave plasma. We observe that the diamond growth is strongly affected by the different conditions in each of the CVD processes resulting in different SWNT/diamond structures. It is also found that only the linear antenna MWCVD process allows penetration of the activated growth species into the volume of the SWNT paper, whereas using the other methods, the diamond grains are formed on the SWNT surface only. Moreover, the growth of diamond within the substrate volume is strongly influenced by the CH4/CO2/H2 content ratio.
    Permanent Link: http://hdl.handle.net/11104/0242024

     
     
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