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Surface chemical structure of the initial and the plasma-treated (60 s) PET films.
| Sample | Atomic Concentration, % | ||||
|---|---|---|---|---|---|
| С | O | N | Al | O/C | |
| PET | 73.0 | 27.0 | − | − | 0.37 |
| PET-AC | 66.0 | 31.3 | 2.5 | − | 0.47 |
| PET-cathode | 59.9 | 34.9 | 1.2 | 4.0 | 0.58 |
| PET-anode | 70.8 | 25.6 | 1.8 | 1.8 | 0.36 |
