The Effect of Nonequilibrium Synthesis Conditions on the Structure and Optical Properties of Amorphous Carbon Films
- Authors: Ryaguzov A.P.1, Nemkayeva R.R.1,2, Yukhnovets O.I.1, Guseinov N.R.1, Mikhailova S.L.3, Bekmurat F.3, Assembayeva A.R.1,4
-
Affiliations:
- National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University
- Engineering Laboratory, Al-Farabi Kazakh National University
- Department of Solid State Physics and Nonlinear Physics, Al-Farabi Kazakh National University
- Satpaev Kazakh National Technical University
- Issue: Vol 127, No 2 (2019)
- Pages: 251-259
- Section: Spectroscopy of Condensed States
- URL: https://journal-vniispk.ru/0030-400X/article/view/166061
- DOI: https://doi.org/10.1134/S0030400X19080228
- ID: 166061
Cite item
Abstract
Amorphous carbon (a-C) thin films are synthesized using a nonequilibrium method of ion-plasma sputtering of a graphite target under argon atmosphere at a constant plasma current. The local structure of carbon films is studied by the Raman spectroscopy method. Using the normal distribution in the decomposition of the Raman spectra, it is found that a peak typical for a phonon density of states with sp3 bond hybridization appears in the frequency region of 1260 cm–1 at synthesis temperatures of less than 150°C. In addition, the influence of the dimensions of nanostructures composed of sp2 sites on the width of optical bandgap and their correlation with the results of X-ray photoelectron spectroscopy (XPS) in a-C films is shown.
Keywords
About the authors
A. P. Ryaguzov
National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University
Author for correspondence.
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040
R. R. Nemkayeva
National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University; Engineering Laboratory, Al-Farabi Kazakh National University
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040; Almaty, 050040
O. I. Yukhnovets
National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040
N. R. Guseinov
National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040
S. L. Mikhailova
Department of Solid State Physics and Nonlinear Physics, Al-Farabi Kazakh National University
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040
F. Bekmurat
Department of Solid State Physics and Nonlinear Physics, Al-Farabi Kazakh National University
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040
A. R. Assembayeva
National Nanotechnology Open Laboratory, Al-Farabi Kazakh National University; Satpaev Kazakh National Technical University
Email: ryaguzov_a@mail.ru
Kazakhstan, Almaty, 050040; Almaty, 050040
Supplementary files
