National Nanotechnological Laboratory Open Type Al Farabi KazNU

Almaty, Kazakhstan

National Nanotechnological Laboratory Open Type Al Farabi KazNU

Almaty, Kazakhstan
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Ryaguzov A.P.,National Nanotechnological Laboratory Open Type Al Farabi KazNU | Ryaguzov A.P.,National Research Nuclear University MEPhI | Nemkayeva R.R.,National Nanotechnological Laboratory Open Type Al Farabi KazNU | Nemkayeva R.R.,Laboratory of Engineering Profile Al Farabi KazNU | And 2 more authors.
Journal of Physics: Conference Series | Year: 2016

Method of high-frequency ion-plasma (RF) sputtering of graphite target in the atmosphere of argon, methane and hydrogen with various ratios was used to synthesize amorphous hydrogenated carbon films (a-C:H) at low power of RF discharge in wide range of temperature and pressure of gas mixture from 0.5 to 0.9 Pa. Structural analysis by methods of atomic force microscopy and Raman spectroscopy showed significant dependence of films structure on thermodynamic and kinetic parameters of synthesis. Change of optical band gap in the range from 1.4 eV to 2.7 eV confirms considerable structural difference of amorphous carbon films obtained at different synthesis conditions. The influence of hydrogen on formation of structure is shown. © Published under licence by IOP Publishing Ltd.


Alpysbayeva B.E.,Al-Farabi Kazakh National University | Abdullin K.A.,National Nanotechnological Laboratory Open Type Al Farabi KazNU | Kalkozova J.K.,Al-Farabi Kazakh National University | Kalkozova J.K.,National Nanotechnological Laboratory Open Type Al Farabi KazNU | And 3 more authors.
Inorganic Materials | Year: 2015

Process of obtaining one-layer porous alumina etching mode in a strong field was investigated. Morphology of samples was determined at various stages of anodizing. Ordered arrangement of pores, nanowires and nanorods of aluminum oxide were shown within the one etching step. © 2015 Pleiades Publishing, Ltd.

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