Photoelectron spectroscopy is the study of the composition and electronic state of a sample surface area using photoionization and kinetic energy distribution analysis of emitted photoelectrons. The elemental composition, empirical formula, and chemical state of the elements in the material are measured using X-ray photoelectron spectroscopy (XPS), a surface investigation technique based on the photoelectric effect. XPS examines electrons in core energy levels using X-rays. Ultraviolet photoelectron spectroscopy (UPS) uses vacuum ultraviolet (UV) radiation to create the photoelectric effect in the same way that XPS does. The single photon input/electron output mechanism is used in both photoelectron energy spectra.
We blast the sample surface with X-rays or ultraviolet photons in photoemission technology. Atoms near the sample's surface emit electrons as a result of incident photons. Photoelectrons have the energy characteristics of the atom from which they are produced in X-ray photoelectron spectroscopy, allowing us to make elemental and chemical evaluations. UV photons employed in ultraviolet photoelectron spectroscopy have a lower energy and detect electrons in the surface atoms' outermost valence level, generating surface electronic structure information like work function and valence band boundaries.
In our analysis lab, Alfa Chemistry has a variety of X-Ray and UPS instruments that can run samples under constrained sample preparation conditions. Please contact Alfa Chemistry for additional information on our X-Ray and UPS facilities and their activities.
Thermo Scientific K-Alpha +XPS/UPS System
The instrument is intended for characterisation of thin films and surfaces. It has the ability to perform X-ray Photoelectron Spectroscopy (XPS) and Ultraviolet Photoelectron Spectroscopy (UPS), as well as offer information on element composition, oxidation state, and electronic state.
The sample is studied as a single point or line, and the size of the X-ray beam can be changed between 30 and 400 m in 5 m increments. Chemical imaging is also available, allowing for the collection of distribution maps with sizes ranging from 0.5 mm x 0.5 mm to 3 mm x 3 mm.
Malvern Panalytical Portable XRF Analyzer
This desktop spectrometer uses energy dispersive X-ray fluorescence to do non-destructive examination of elements ranging from sodium to uranium at concentrations ranging from percent to ppm. A Malvern Panalytical non-standard Omnian calibration program, specifically configured for heavy metal analysis, is included with the instrument.。
Bruker Tracer 5i XRF Spectrometer
The energy dispersive XRF spectrometer is ideal for laboratory and field analysis, and it can detect elements from Mg to U. (ranging from percent to ppm levels). Internal cameras, 3mm and 8mm collimators, automatic internal wheel filters, and manual filter slots are all included in the system.
Bruker ARTAX XRF Spectrometer
The spectroscopic system is a portable energy dispersive XRF spectrometer capable of point analysis and mapping with a resolution of 70 m. The rotating measuring head can analyze a variety of samples without contact, including samples that are too large to be analyzed by traditional laboratory instruments and very small samples that require high resolution rate. It can analyze elements from Na to U (from percent to ppm level), and the rotating measuring head can analyze a variety of samples without contact, including samples that are too large to be analyzed by traditional laboratory instruments and very small samples that require high resolution rate.