Abstract

An investigation of the structural arrangement and mechanical properties of a-C:F:H films obtained by plasma enhanced chemical vapor deposition (PECVD) using C 2H 2–CF 4 gas mixtures as precursor atmospheres was carried out. The results indicate that fluorine incorporation increases the hydrophobicity of the films and relaxes the internal stress, while reducing the hardness also. It was shown that it is possible to obtain fluorinated carbon films with hydrophobicity comparable to that of polytetrafluoroethylene (TFE) but with much higher hardness, that is in the range of a few GPa.

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