2024年7月26日 · Ambient pressure X-ray photoelectron spectroscopy (APXPS) is combined with simultaneous electrical measurements and supported by density functional theory calculations to investigate the sensing mechanism of tungsten disulfide (WS 2)-based gas sensors in an operando dynamic experiment.

X‐ray photoelectron spectroscopy (XPS) analysis further revealed that the integration of 1D and 2D nanostructures with WS2 has been found effective to alter the interface by the development of ...

2023年5月10日 · This study analyzes the hydrogen sensing mechanism of a nanostructured WS 2 layer using near-ambient-pressure X-ray photoelectron spectroscopy (NAP-XPS) and density functional theory (DFT).

2017年11月23日 · The synthesized WS 2 film was characterized by AFM, Raman spectroscopy, PL, and XPS. The optical image of as-synthesized few-layer WS 2 film on a SiO 2 /Si substrate indicates uniform and...

In this work, a facile oxidation strategy was developed to prepare novel tungsten disulfide/tungsten trioxide (WS2/WO3) heterostructures for adsorbing organic dyes efficiently by combining the...

2020年2月3日 · Raman and X-Ray photoelectron spectroscopy (XPS) revealed that the synthesized few-layer WS2 films are highly crystalline and stoichiometric.

In this study, we adopted a simple drop cast method for the fabrication of MoS2 and WS2 channel based FET on commercially available pre-patterned OFET devices. The synthesis of few-layers thick...

2014年6月30日 · The analysis of WS 2 and WS 2-based films by x-ray photoelectron spectroscopy (XPS) can be challenging, due to contamination and oxidized material on the surface. The investigations have traditionally therefore included sputter etching by ion bombardment, which however leads to changes of the remaining material.

鉴于润滑中的高温操作条件，这项工作着重于ws 2纳米粉在高温下的润滑性能。在100–300°c时，观察到ws 2纳米粉的摩擦系数（cof）肯定很低（约0.05）。进行了高温摩擦学实验，并应用第一性原理模拟来同时研究润滑性能。根据xrd和xps光谱，应该注意到，在高温下获得了具有（002）晶面优选取向的ws 2 ...

2020年9月5日 · The as-grown heterostructural QDs exhibited uniform WO 3 shell layers covered on the surface of WS 2 (core) QDs, which was confirmed by the high-resolution transmission electron microscope (HRTEM), X-ray photoelectron …