Title
Molecular dynamics simulations of the sticking and etch behavior of various growth species of (ultra)nanocrystalline diamond films Molecular dynamics simulations of the sticking and etch behavior of various growth species of (ultra)nanocrystalline diamond films
Author
Faculty/Department
Faculty of Sciences. Chemistry
Publication type
article
Publication
Weinheim ,
Source (journal)
Chemical vapor deposition. - Weinheim
Volume/pages
14(2008) :7/8 , p. 213-223
ISSN
0948-1907
ISI
000259302700008
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
The reaction behavior of species that may affect the growth of ultrananocrystal line and nanocrystalline diamond ((U)NCD) films is investigated by means of molecular dynamics simulations. Impacts of CHx (x = 0 - 4), C2Hx (x=0-6), C3Hx (x=0-2), C4Hx (x = 0 - 2), H, and H-2 on clean and hydrogenated diamond (100)2 x 1 and (111) 1 x 1 surfaces at two different substrate temperatures are simulated. We find that the different bonding structures of the two surfaces cause different temperature effects on the sticking efficiency. These results predict a temperature-dependent ratio of diamond (100) and (111) growth. Furthermore, predictions of which are the most important hydrocarbon species for (U)NCD growth are made.
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