What is XPS characterization?
X-ray Photoelectron Spectroscopy (XPS) or Electron Spectroscopy for Chemical Analysis (ESCA) is a technique which analyzes the elements constituting the sample surface, its composition, and chemical bonding state by irradiating x-rays on the sample surface, and measuring the kinetic energy of the photoelectrons emitted
What are the components of XPS?
The main components of an XPS system are the source of X-rays, an ultra-high vacuum (UHV) chamber with mu-metal magnetic shielding, an electron collection lens, an electron energy analyzer, an electron detector system, a sample introduction chamber, sample mounts, a sample stage with the ability to heat or cool the
What can XPS tell us about a sample?
X-ray photoelectron spectroscopy (XPS), also known as electron spectroscopy for chemical analysis (ESCA), is a technique for analyzing a materials surface chemistry. XPS can measure elemental composition as well as the chemical and electronic state of the atoms within a material.
How to interpret XPS spectrum?
How to interpret the data it generates Peaks from the XPS spectra give relative number of electrons with a specific binding energy. The shorter the peak, the less electrons represented. The greater the binding energy, the greater the attraction of that electron to the nucleus.
What information can be obtained from XPS?
XPS is routinely used to analyze inorganic compounds, metal alloys, polymers, elements, catalysts, glasses, ceramics, paints, papers, inks, woods, plant parts, make-up, teeth, bones, medical implants, bio-materials, coatings,viscous oils, glues, ion-modified materials and many others.
What is the use of XPS characterization?
XPS is used to characterize the surfaces of diverse materials such as inorganic compounds (minerals), semiconductors, organic compounds, and thin films and coatings on natural and engineered materials.
What elements can XPS detect?
XPS Spectroscopy can detect and quantify all elements except for H and He and provide chemical state information, making it a powerful survey analysis technique.
What are the samples for XPS?
The samples that can be analyzed by XPS are all solids ranging from films, powders to frozen liquids including inorganic compounds, metal alloys, semiconductors, polymers, elements, catalysts, glasses, ceramics, paints, papers, inks, woods, plant parts, makeup, teeth, bones, medical implants, bio-materials, viscous
