Nanodiamond embedded ta-C composite film by pulsed filtered vacuum arc deposition from a single target

Ajai Iyer, Jarkko Etula, Yanling Ge, Xuwen Liu, Jari Koskinen

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)
139 Downloads (Pure)

Abstract

Detonation Nanodiamonds (DNDs) are known to have sp3 core, sp2 shell, small size (few nm) and are gaining importance as multi-functional nanoparticles. Diverse methods have been used to form composites, containing DNDs embedded in conductive and dielectric matrices for various applications. Here we show a method, wherein DND-ta-C composite film, consisting of DNDs embedded in ta-C matrix have been co-deposited from the same cathode by pulsed filtered cathodic vacuum arc (p-FCVA) method. Transmission Electron Microscope (TEM) analysis of these films revel the presence of DNDs embedded in the matrix of amorphous carbon. Raman spectroscopy indicates that the presence of DNDs does not adversely affect the sp3 content of DND-ta-C composite film compared to ta-C film of same thickness. Nanoindentation and nanowear tests indicate that DND-ta-C composite films possess improved mechanical properties in comparison to ta-C films of similar thickness.
Original languageEnglish
Article number201905
Number of pages4
JournalApplied Physics Letters
Volume109
Issue number20
DOIs
Publication statusPublished - Nov 2016
MoE publication typeA1 Journal article-refereed

Keywords

  • Nanodiamonds
  • Diamond like carbon
  • Composite
  • Thin film
  • Filtered cathodic arc

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