HR-XPS (High-Resolution X-Ray Photoelectron Spectroscopy) Testing
High-Resolution X-ray photoelectron spectroscopy (HR-XPS) is a technique based on the photoelectric effect. It is used to determine the elements present on the surface of the sample, the chemical state of the elements, and the overall electronic structure and density of the electronic states.
TRUSTED BY
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
High-Resolution XPS Overview
High-Resolution X-ray Photoelectron Spectroscopy (HR-XPS) is a surface-sensitive analytical technique used to determine the elemental composition and chemical states of materials at the nanometer scale. It provides detailed insights into surface chemistry and bonding environments.
HR-XPS is widely used for advanced materials characterization, thin-film analysis, and surface modification studies. It enables precise identification of oxidation states, contaminants, and functional groups critical for research, coatings, semiconductors, and nanotechnology applications.
Scope, Applications, and Benefits
Scope
HR-XPS evaluates:
- Elemental composition of surfaces
- Chemical states and oxidation states
- Surface contamination and impurities
- Thin film and coating characteristics
Applications
- Semiconductor and electronics industries
- Coatings and surface engineering
- Nanomaterials and advanced materials
- Corrosion and oxidation studies
- Research and development applications
Benefits
- Provides detailed surface chemical information
- Enables identification of oxidation and bonding states
- Detects trace-level surface contaminants
- Supports thin film and coating analysis
- Enhances understanding of material surface behavior
High-Resolution XPS Test Process
Sample Preparation
The sample surface is cleaned and mounted under vacuum conditions to prevent contamination.
1X-ray Irradiation
The surface is exposed to monochromatic X-rays to eject photoelectrons.
2Electron Detection
Emitted electrons are analyzed based on their kinetic energy to determine binding energy.
3Data Analysis
Spectra are interpreted to identify elements and their chemical states.
4High-Resolution XPS Technical Specifications
| Parameter | Details |
|---|---|
| Standard | ISO 15472, ASTM E1523 |
| Applicable Materials | Metals, polymers, ceramics, thin films |
| Minimum Sample Size | Small solid samples |
| Measured Outputs | Elemental composition, chemical states |
| Accuracy | High surface sensitivity (nm scale) |
Instrumentation Used for Testing
- XPS spectrometer
- Monochromatic X-ray source
- Ultra-high vacuum chamber
- Electron energy analyzer
- Sample stage and holders
- Data analysis software
Results and Deliverables
- Elemental surface composition
- Chemical state and oxidation analysis
- Binding energy spectra
- Surface contamination assessment
- Thin film characterization data
Partnering with Infinita Lab for Optimal Results
Infinita Lab addresses the most frustrating pain points in the High-Resolution XPS testing process: complexity, coordination, and confidentiality. Our platform is built for secure, simplified support, allowing engineering and R&D teams to focus on what matters most: innovation. From kickoff to final report, we orchestrate every detail—fast, seamlessly, and behind the scenes.
Looking for a trusted partner to achieve your research goals? Schedule a meeting with us, send us a request, or call us at (888) 878-3090 to learn more about our services and how we can support you. Request a Quote
Frequently Asked Questions
High Res XPS is an advanced analytical tool that can determine the elemental composition, identify the chemical states, and probe the electronic structure at the nanoscale.
Significant differences exist in resolution and sensitivity between high-resolution XPS and conventional XPS. HR-XPS produces higher energy resolution, allowing it to pick up minimal differences in the chemical state and provide more accurate descriptions of complicated materials.
High-res XPS allows the investigation of an extensive range of materials, like metals, semiconductors, polymers, ceramics, thin films, and nanomaterials.
One of HR-XPS's main limitations is its extreme surface sensitivity, which typically examines only the top few nanometers of a material.
HR-XPS is used in many applications that involve catalysis, semiconductor research, battery development, corrosion studies, and nanotechnology.
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