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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Perspectives in diamond thin film technology
 Kromka, Alexander
Synthetic diamond thin films are routinely grown over world not only for basic research but also for industrial uses. At the Institute of Physics (IoP), diamond thin films are grown since 2002. The first installed deposition system is base on microwave plasma enhanced chemical vapor deposition (CVD) in hydrogen reach gas mixture (<2% methane diluted in hydrogen). This system is well suitable for fast growth of high quality diamond films up to 5 cm in diameter. The main advance of the system is cavity like resonator which allows running stable CVD process for several days at relatively high pressures (>200 mbar).
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Study of nucleation and growth of diamond thin films
 Ižák, Tibor ; Babchenko, Oleg ; Varga, Marián ; Potocký, Štěpán ; Marton, M. ; Vojs, M. ; Domonkos, Mária ; Kromka, Alexander
This study deals with the nucleation and growth of CVD diamond films on Si substrates. In nucleation part two different nucleation methods were studied: (i) the bias enhanced nucleation (BEN) and (ii) ultrasonic seeding. In the case of BEN, (i) the nucleation time and (ii) the influence of bias voltage were studied. For ultrasonic seeding the effect of different solutions of ultradisperzed detonation nanodiamond (UDD) powder with metal particles on the nucleation efficiency and growth process was investigated (i.e. diamond powder, nanosized Ni, microsized Co and Y metal powders).
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