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Characteristics of Carbide Interfacial Layer Formed During Deposition of DLC Films on 316L Stainless Steel Substrate

Dudek M.

Archives of Metallurgy and Materials

2017

Vol. 62, iss. 4

2211--2216

The paper presents the analysis of formation of interfacial layer during deposition of diamond like carbon film (DLC) on the 316L stainless steel by capacitive plasma discharge in the CH4 atmosphere. The structure of the interfacial layer of DLC film was strongly affected by the temperature increase during the initial stages of the process. Initially, thin interfacial layer of 5 nm has been formed. As the temperature had reached 210°C, the second phase of the process was marked by the onset of carbon atoms diffusion into the steel and by the interface thickness increase. Finally, the growth of chromium carbide interface, the upward diffusion of chromium and nickel atoms to film, the etching and the decrease of the DLC film thickness were observed at 233°C. These investigations were carried out ex-situ by spectroscopic ellipsometry, X-ray diffraction, X-ray photoelectron spectroscopy and Raman spectroscopy.

Nitrogen containing diamond-like carbon films as protective and fluorescent layers for silicon solar cells

Litovchenko V. G., Klyui N. I., Kostylyov V. P., Gorbulik V. I., Piryatinskii Y. P.

Opto-Electronics Review

2000

Vol. 8, No. 4

402-405

Thick (1300-1500 nm) diamond like carbon (DLC) films deposited on a working side of a solar cell (SC) allow us to increase its stability relating to the effect of proton and ultraviolet (UV) irradiation. So, one-stage (E=50 keV) or multi-energy (50+100 keV) implantation of proton into protected SC (the S.C. + DLC films system) did not practically influence SC parameters. Moreover, SC covered by DLC film after UV irradiation shows improvement in efficiency both for implanted and unimplanted samples. At the same time the unprotected SC deteriorated after those treatments. The effects observed are connected with decreasing reflection losses due to deposition of DLC films, re-emission by DLC film of absorbed ultraviolet light in visible spectral range, and self-annealing of radiation damages in implanted DLC films due to light - induced hydrogen bonding. The results obtained have opened up a wide variety of potential applications of DLC films, especially for space solar cells.