Feb 15, 2009 · The shape and the structure of the C1s peak differed significantly from those corresponding to treated PET. Five distinct components were individualised: the C1s(1), C1s(2), C1s(3) and C1s(4) contributions which are associated to the same forms of carbon in the carbon dioxide plasma treated PET, and a new component shifted by 1.3 eV towards low ...

The main peaks in C1s spectra of PET could be assigned to C−C/C−H of aromatic ring at 284.7 eV; C−O at 286.3 eV; O=C–O at 288.7 eV. The deconvolution of O1s spectra confirms the presence of these oxygen-containing groups—O=C–O at 531.6 eV and C–O at 533.2 eV.

XPS high-resolution spectra of carbon C1s for the CF 4 plasma-treated PET sample after incubation in an albumin solution for various periods. From the intensity of the fluorine signal (Figure 3c), we can roughly estimate the protein layer …

Dec 1, 2005 · In this work, we report molecular layer deposition (MLD) of ultrathin poly(ethylene terephthalate) (PET) films on gram-scale batches of ultrafine particles for the first time.

For untreated PET, the C 1s spectrum was fitted with three peaks (Fig. 1a) at 284.8, 286.6 and 288.8 eV, which correspond to bonds typical of a benzene ring (C-C, C=C), methylene carbon singly...

Nov 30, 2023 · Femtosecond laser removes carbon film precisely without PET substrate damage. The most significant laser parameters are scanning speed and pulse energy. The optimal laser energy density is found to be 18-27 J/cm 2. Assisted by carbon atoms, laser irradiation on PET may form laser-induced graphene.

Adventitious carbon contamination is commonly used as a charge reference for XPS spectra. C1s spectrum for contamination typically has C-C, C-O-C, and O-C=O components. The C-C component may be set to a binding energy of 284.8eV, by default.

Mar 1, 2023 · The O1s spectra can be readily fit with two peaks. By the PET structure, the O1s spectra are fitted by two partially resolved components at 531.78 eV carbonyl oxygen (C O 4) and 533.50 eV aliphatic ester oxygen (C–O 5), respectively. The detailed XPS C1s and O1s spectra of pure PMMA are presented in Fig. 1 d. The four-peak fitting strategy ...

The C1s and O1s peaks of the PET treated by the SDBD plasma in oxygen show almost no effect of pre-treatment on the surface composition of the polymer, but the treated sample exhibits higher ...

Jan 12, 2006 · XPS measurements of poly (ethylene terephthalate) recorded with a SSX-100 spectrometer in standardized experimental conditions are presented: survey scan, high resolution core level spectra as well as the energy loss regions of carbon and oxygen peaks are analyzed. 1. ). 2. Spectrosc. Relat. Phenom. ). © 2006 American Vacuum Society.