Plasma reactions of N2O on hydrogenated amorphous carbon films by PECVD

Y. T. Kim, S. G. Yoon, S. C. Jung, S. J. Suh, D. H. Yoon

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Diamond-like carbon (DLC, a-C:H) films were deposited by r.f. plasma-enhanced chemical vapor deposition of methane(CH4) -nitrous oxide(N2O)-hydrogen(H2) mixtures onto silicon substrates. Increasing the r.f. power leads to the production of more radicals and to a deposition rate as high as 1380 Å h-1 at r.f. power of 300 W, after which it decreases. As the r.f. power increases, the root-mean-square (RMS) roughness decreases. The RMS roughness of 2.2 Å was obtained at r.f. power of 300 W. The optical properties (the transmittance over a wide spectral range and refractive index) were determined by means of IR-spectroscopy and ellipsometric measurements. Surface morphology of DLC films with roughness below 10 Å was observed under atomic force microscopy.

Original languageEnglish
Pages (from-to)250-253
Number of pages4
JournalSurface and Coatings Technology
Volume180-181
DOIs
StatePublished - 1 Mar 2004

Keywords

  • Annealing
  • Diamond-like carbon
  • Plasma-enhanced chemical vapor deposition

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