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Functional diamond like carbon (DLC) coatings on polymer for improved gas barrier performance
Ray S.C., Mukherjee D., Sarma S., Bhattacharya G., Mathur A., Roy S.S., McLaughlin J.A.
Published in Elsevier Ltd
Volume: 80
Pages: 59 - 63
We have studied the optimum deposition conditions for the improvement of oxygen and carbon dioxide gas barrier performance of functional diamond-like carbon (DLC) thin films. The a-C:H: a-C:H:Si, a-C:H:N and ta-C:N thin films with 10–400 nm thickness were deposited on polyethylene terephthalate (PET) substrates by the radio frequency plasma-enhanced chemical vapour deposition method. To study the microstructure of the PET coated films, we have used the Raman spectroscopy, X-ray photoelectron spectroscopy, nano-indentation and surface profilometry. The gas barrier property were analysed and found that the a-C:H:N's are 5–10 times better gas barrier properties than that of uncoated PET substrates. These thin layer PET coated thin films could be use in food packaging and biomedical applications. © 2017 Elsevier B.V.
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Published in Elsevier Ltd
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