Figure 9

XPS visualization of high-energy tails associated with carbon bonding to oxygen for Parylene C (A-E) and Parylene N (F-J) membranes with different treatments on day 1 and day 7 and corresponding normalized oxygen concentrations extracted from the survey scans. Continuous black lines in each graph correspond to the corrected data, and the dotted lines are Gaussian–Lorentzian fits for carbon–oxygen (orange and blue) and carbon–carbon (gray) bonds.