Abstract
It has theoretical significance and practical value to synthetize and modify amorphous carbon films by liquid electro-deposition technique due to its low cost, simple equipment, and better operability in uniform deposition of the films with large-area and complex shape work pieces. This article introduces the research situation of the carbon films prepared by liquid phase electrochemical deposition according to the applied voltage, discusses the influence of experimental parameters on the film properties, and describes possible reaction mechanisms. It summarizes the research progress of amorphous carbon films doped with metal and nonmetals. Finally, existing problems have been demonstrated and suggestions on research hotspots in the future are given.
Highlights
Amorphous carbon films have an extensive application prosperity in the mechanical, electronic, chemical, military and aerospace fields due to their low friction coefficient, good wear resistance, chemical inertness, and high transmittance in a wide range from infrared to ultraviolet
Hydrogenated carbon films were successfully synthesized by Namb [3] in 1992 from electrochemical deposition technique
Some experiments have proved that hydrogenated amorphous carbon films with obvious characteristics of diamond structure can be prepared using liquid–phase deposition under atmospheric pressure and low temperature
Summary
Amorphous carbon films have an extensive application prosperity in the mechanical, electronic, chemical, military and aerospace fields due to their low friction coefficient, good wear resistance, chemical inertness, and high transmittance in a wide range from infrared to ultraviolet. The deficiencies of these techniques are more complex equipment, higher cost, and more difficult in deposition uniform films with large-area and irregular surface [1]. Maissel et al [2] pointed out that the film materials prepared in the gas phase can be obtained from electrochemical deposition in the liquid phase, and vice versa. Hydrogenated carbon films were successfully synthesized by Namb [3] in 1992 from electrochemical deposition technique. Using a high voltage, the films were deposited on substrate as cathode and graphite or Pt. served as anode [4,5]. The report has attracted much attention in view of the facts of low-cost, random choice of substrates and carbon sources, and easy doping
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