Surface characterization and degradation behavior of polyimide films induced by coupling irradiation treatment

Abstract

Schematic of irradiation-load-heating coupling treatment and degradation process of polyimide film.

Phosphine Oxide Derivative as a Passivating Agent to Enhance the Performance of Perovskite Solar Cells

“…60,61 The deposition of THPPO caused an appearance of an additional peak at 533.1 eV that arose from tetrahydropyran and ether of THPPO showing a significant increase in the intensity with the increase in the concentration of THPPO. 62 In the P 2p spectra, we confirmed a peak that originated from the PO bond of THPPO at 133.7 eV (Figure 3d). 63,64 The Pb 4f spectra verified the passivation effect of THPPO (Figure 3e).…”

“…The peak of the CO bond at 288.4 eV may have originated from the contamination of the perovskite upon exposure to the ambient air during the sample transfer for the measurement . The peak at 532.3 eV of the control film in the O 1s spectra, can be also attributed to the OC bond formed by the surface oxidation (Figure c). , The deposition of THPPO caused an appearance of an additional peak at 533.1 eV that arose from tetrahydropyran and ether of THPPO showing a significant increase in the intensity with the increase in the concentration of THPPO . In the P 2p spectra, we confirmed a peak that originated from the PO bond of THPPO at 133.7 eV (Figure d). , …”

Selective deposition of metal oxide nanoflakes on graphene electrodes to obtain high-performance asymmetric micro-supercapacitors

“…The XRD patterns of our MO x samples (Fig. S5 †) consist two broad peaks at 22.4°a nd 26.7°, which primarily come from the (110) and (210) phase 51 of the polyimide substrate and the (002) phase of the graphene layer. 52 Low intense signals at around 28.7°for MnO 2 and 35.6°for Fe 2 O 3 also reveal the presence of very small oxide crystallites, possibly corresponding to pyrolusite β-MnO 2 (110) and maghemite γ-Fe 2 O 3 (311).…”

Physicochemical Studies on the Surface of Polyamide 6.6 Fabrics Functionalized by DBD Plasmas Operated at Atmospheric and Sub-Atmospheric Pressures

“…Figure 9 a shows the C1s spectrum of the pristine PA6.6 fabric, where the prominent peak at 284.5 eV is related to C=C bonds and the peak at 285.5 eV corresponds to C–N bonds. The other three peaks at 282.6 eV, 286.3 eV, and 287.9 eV are attributed to C–Si, C–O (ether group), and C=O (carbonyl group), respectively [ 10 , 64 , 65 , 66 , 67 , 68 ]. After the plasma treatment, the peak positions of the C1s spectra did not change, only the relative intensities of the peaks were modified.…”