2019年2月1日 · We will review the evolution of x-ray photoelectron spectroscopy (XPS / ESCA) instrumentation and applications that led to the development of the scanning XPS microprobe, describe its unique capabilities, and how they have impacted the use of …

2024年8月27日 · XPS, also known as ESCA (Electron Spectroscopy for Chemical Analysis), is a surface-sensitive technique used to determine elemental composition and chemical bonding states. The sample is irradiated with mono-energetic X-rays, causing electrons to be emitted.

2023年5月26日 · 该系统具备微区测试功能，可以针对微米级别的特定区域开展元素组分与电子结构分析，是目前观测薄膜样品元素和价态分布，进而探索其生长机理最有力的工具之一. 3. XPS, Raman, UPS多表征手段原位联用，多角度分析样品。

微区XPS可以应对从大面积到微区的分析需求，既可以表征表面成分、表面多层薄膜等，又可以对环境颗粒物、表面缺陷（腐蚀、异物、污染、分布不均等）进行微区定位分析，因此对于各种材料开发，材料剖析与失效机理的分析和研究具有不可替代的作用。 1. 预处理尺寸要求：块体/片状/薄膜：长宽厚不超出1 × 1 × 0.3 cm（磁性样品尽量小）（对块状样品或薄膜样品的测试面做好标记）；粉末样品大于200目，不少于10mg，量少的请用称量纸包好再装到管子里寄。 请勿用手 …

2018年6月11日 · This work presents a thorough XPS study of CNT fibers subjected to different purification and chemical treatments, including spatially-resolved micro XPS synchrotron measurements. The dominant feature is an inherently high degree of sp 2 conjugation, leading to a strong plasmonic band and a semi-metallic valence band lineshape.

其研究团队在研究聚酰亚胺-MoS2复合材料真空转移膜的形成机理的过程中，利用ULVAC-PHI 的扫描微聚焦型XPS（PHI 5000 VesaProbe III），成功地对不同摩擦阶段转移膜的微区化学成分和形貌进行了全面表征，揭示了转移膜的形成与磨屑堆积之间的关系。 图1. 跑合（磨合）阶段的磨痕 (a1)和磨斑 (a2)的微区SXI图像定位和微区XPS表征[1]。 图2. 稳定磨损阶段的磨痕 (a1)和磨斑 (a2)的微区SXI图像定位和微区XPS表征[1]。 图1和图2展示了跑合（磨合）阶段和稳定磨损阶 …

Panel (c) displays a micro-XPS overview spectrum with significant signal of Au (4f), As (3d), and Ga (3d)) core levels. Top insets of the panel show individual core-level spectra measured using...

“phi genesis”xps 具有高速、高灵敏度和压倒性的微型 xps 分析性能，具有自动多样品分析和自动样品交换功能。 具有更高计数率的高灵敏度分析仪也有助于实现高性能。

Research in a wide range of disciplines – materials science, nano-science, heterogeneous catalysis, corrosion science, polymer science, to name but a few – is in strong need of improved surface imaging techniques with structural, chemical, electronic, and magnetic contrasts at spatial resolutions in the nanometer range.

2011年2月10日 · This research compares and contrasts relevant performance characteristics of the two systems including elemental and chemical state detection sensitivity, imaging capabilities including lateral resolution and useful image fields, role of X-ray dose damage to surface, analysis speed as well as analytical throughput.