• RMIT Australia
  • RMIT Global
  • RMIT Australia
  • RMIT Europe
  • RMIT Vietnam

• Students
• Alumni
• Staff

Research Repository

Back to Library

• Home
• Browse
• Search
• FAQs
• About
• Contact Us

The origin of preferred orientation during carbon film growth Taylor, M, Lau, D, Partridge, J, McCulloch, D, Marks, N, Teo, E and Mckenzie, D 2009, 'The origin of preferred orientation during carbon film growth', Journal of Physics Condensed Matter, vol. 21, no. 22, pp. 225003-225011. Document type: Journal Article Collection: Journal Articles Title The origin of preferred orientation during carbon film growth Author(s) Taylor, M Lau, D Partridge, J McCulloch, D Marks, N Teo, E Mckenzie, D Year 2009 Journal name Journal of Physics Condensed Matter Volume number 21 Issue number 22 Start page 225003 End page 225011 Total pages 9 Publisher Iop Publishing Ltd Abstract Carbon films were prepared using a filtered cathodic vacuum arc deposition system operated with a substrate bias varying linearly with time during growth. Ion energies were in the range between 95 and 620eV. Alternating dark, high density (sp3 rich) bands and light, low density (sp2 rich) bands were observed using cross-sectional transmission electron microscopy, corresponding to abrupt transitions between materials with densities of approximately 3.1 and 2.6gcm-3. No intermediate densities were observed in the samples. The low density bands show strong preferred orientation with graphitic sheets aligned normal to the film. After annealing, the low density bands became more oriented and the thinner high density layers were converted to low density material. In molecular dynamics modelling of film growth, temperature activated structural rearrangements occurring over long timescales (ps) caused the transition from sp3 rich to oriented sp2 rich structure. Once this oriented growth was initiated, the sputtering yield decreased and channelling was observed. However, we conclude that sputtering and channelling events, while they occur, are not the cause of the transition to the oriented structure. Subject Surfaces and Structural Properties of Condensed Matter Materials Engineering not elsewhere classified DOI - identifier 10.1088/0953-8984/21/22/225003 Copyright notice © 2009 IOP Publishing Ltd. ISSN 0953-8984 Related Links Link Description http://dx.doi.org/10.1088/0953-8984/21/22/225003 Link to Published Version   Versions Version Filter Type Thu, 23 Dec 2010, 08:04:45 EST Wed, 18 Jun 2014, 00:22:20 EST Filtered Full Citation counts:   Cited 10 times in Thomson Reuters Web of Science Article | Citations Cited 6 times in Scopus Article | Citations Altmetric details: Access Statistics: 175 Abstract Views  -  Detailed Statistics Created: Wed, 22 Dec 2010, 10:15:00 EST by Catalyst Administrator