Počet záznamů: 1

Novel high frequency pulsed MW-linear antenna plasma-chemistry: Routes towards large area, low pressure nanodiamond growth

  1. 1.
    0361471 - FZU-D 2012 RIV CH eng J - Článek v odborném periodiku
    Taylor, Andrew - Fendrych, František - Fekete, Ladislav - Vlček, J. - Řezáčová, V. - Petrák, V. - Krucký, J. - Nesladek, M. - Liehr, M.
    Novel high frequency pulsed MW-linear antenna plasma-chemistry: Routes towards large area, low pressure nanodiamond growth.
    Diamond and Related Materials. Roč. 20, č. 4 (2011), s. 613-615 ISSN 0925-9635
    Grant CEP: GA AV ČR KAN200100801; GA AV ČR(CZ) KAN400480701; GA MŠk(CZ) LD11076
    GRANT EU: European Commission(XE) 238201 - MATCON
    Výzkumný záměr: CEZ:AV0Z10100520
    Klíčová slova: nanodiamond * high frequency * microwave plasma enhanced CVD * OES * Raman
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 1.913, rok: 2011

    Current experimental microwave plasma enhanced chemical vapour deposition (MW PECVD) concepts for diamond thin films do not allow scaling up toward large areas, which is essential for microelectronic industries. Also, current growth temperatures are rather high and not compatible with processing technologies. In the current work we demonstrate a breakthrough concept using a high frequency (HF) pulsed MW-linear antenna plasma configuration, allowing a scalable concept. By using HF pulses non-linear MW absorption conditions are reached, allowing a reduction of input power to 4 W/cm2 compared with typically 100-200 W/cm2 for resonance cavity applicators. Despite the factor of 50 power reduction, the growth rate obtained at 450°C is comparable to or higher than that of resonance cavity systems. Our concept is a significant improvement as compared to [1 & 3] previous methods of nanodiamond growth. The resulting diamond films show columnar growth, i.e. resembling classical NCD.
    Trvalý link: http://hdl.handle.net/11104/0198778