Structural and Transport Features of sp-Carbon Films Synthesized by Pulsed Plasma Deposition on Various Metal Substrates

Abstract

Using the methods of tunneling, infrared, X-ray photoelectron, Auger, and Raman spectroscopies, X-ray diffraction, and transmission electron microscopy, we study the structure and conductive properties of carbon films synthesized on various metal substrates (Al, Mo, Re, Ta, Ag, Cu, and Pt). The effect of the substrate material on the properties of the carbon film is studied. Based on non-empirical quantum-mechanical calculations, an analysis of the experimental vibrational spectra is carried out. The work function of the substrate material is concluded to depend on the length of the chain fragment.