5 days ago · The X-ray photoelectron spectroscopy (XPS) measurements were used to analyze the chemical composition and the valence state on a Thermo Scientific ESCA Lab250 spectrometer. Based on atomic force microscopy, piezoresponse force microscopy (PFM) involves applying an AC driving voltage to the conductive tip.

Feb 13, 2025 · Similarly, as the contour map of Zn 2p in Fig. 4 e shows, the strong signal peak of Zn 2p, divided into Zn 2p 1/2 and Zn 2p 3/2 at 1046.8 and 1023.5 eV, can be detected at the discharge state of 0.2 V, which is ascribed to mass insertion of Zn 2+ ions in the HAT-TP. The results of the XPS tests and TEM findings thus are consistent.

1 day ago · A comprehensive investigation using ICP, XRD, SEM, TEM, XPS, electrochemical testing, and theoretical calculations revealed the effects of Zn doping on the material’s structure and performance. The results confirmed that Zn was effectively incorporated into the LiMn 2 O 4 lattice, enlarging the unit cell and reducing Mn 3+ content, which ...

Jan 29, 2025 · Fig. 6 (ii) shows the range of the XPS spectrum where the peaks associated with Zn 2+ are located, specifically the Zn 2p 3/2 and Zn 2p 1/2 signals of the different samples analyzed (Fig. 6 (i)), to determine the effect of incorporating Ce or Mg into ZnO.

Feb 3, 2025 · The Zn 2+ flux on the Zn anode surface using PPPA/ZnSO 4 electrolyte was more uniform than that using bare ZnSO 4 electrolyte, because the abundant end-oxygen functional groups and linear π-conjugated structure in PPPA significantly reduce the solvation effect and accelerate Zn 2+ transport, Figures 5e–h. It is concluded therefore that ...

Feb 10, 2025 · Although aqueous Zn-ion batteries (ZIBs) hold huge promise for large-scale energy storage applications, their electrochemical performance is still hampered by side reactions and the generation of Zn dendrites. In order to address these challenges, optimization of the electrolyte composition is a practical and straightforward way to improve the Coulombic …

Feb 6, 2025 · The observed hybridization between Zn-3p and Te-5p orbitals changes its shape due to 3d local states. Near Fermi energy, the V-3d states are significantly asymmetric, and strong hybridization exists in the V-3d and its neighboring Te-5p atoms.

Feb 5, 2025 · Their core-level XPS spectra analyses for elements, such as Sn 3d, Zn 2p, Cu 2p, and S 2p, revealed consistent stability across the CZTS-TiO2 and CZTS-CdS interfaces, showing no notable variations (Figure 8a–d, f–i). However, shifts in the Ti 2p, Cd 3d, and S 2p spectra indicated alterations in the surrounding chemical environment.

3 days ago · xps是检测半导体表面的检测方法之一，半导体晶片在保存放置过程中，免不了要受到环境气氛的氧化或者污染，在使用晶片进行外延生长或加工器件之前，表面的清洁至关重要。

Feb 10, 2025 · xps是一种针对无机材料的强大分析手段，能对无机材料进行元素种类、价态分析，以及样品结合、功函数等参数的测定。 XPS测试原理来自于光电效应。 说起光电效应，爱因斯坦因为相对论闻名于世，而爱因斯坦获得诺贝尔…