X-ray photoelectron spectroscopy (XPS) is a surface sensitive analytic tool used to study the surface composition and electronic state of a sample.

XPS is also often referred to as ESCA, short for Electron Spectroscopy for Chemical Analysis.

X-ray photoelectron spectroscopy (XPS) is a technique used in the industrial and scientific fields to analyze the chemical composition and electronic state of materials. It involves shining a beam of X-rays onto a sample, which causes electrons to be emitted from the surface of the material. By measuring the kinetic energy and number of these emitted electrons, information about the elemental composition and chemical bonding of the material can be obtained.

Some examples of the industrial applications of XPS include:

  1. Surface Analysis: XPS is often used to analyze the surfaces of materials, such as metals, polymers, and semiconductors. This information can be used to understand the properties and behavior of these materials in various applications, such as in electronics, coatings, and adhesives.

  2. Failure Analysis: XPS can also be used to investigate the causes of product failures. By analyzing the surface of a failed product, XPS can help identify the presence of contaminants or other factors that may have contributed to the failure.

  3. Quality Control: XPS can be used in manufacturing and quality control to ensure that products meet specific chemical and compositional requirements. For example, XPS can be used to verify the composition of a surface coating or to ensure that a semiconductor has the correct elemental composition and doping levels.

Other similar techniques related to XPS include:

  1. Auger Electron Spectroscopy (AES): AES is a similar technique to XPS that involves exciting electrons in a sample using a beam of electrons rather than X-rays. AES can provide information about the elemental composition and chemical bonding of materials.

  2. Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS): ToF-SIMS is a technique that involves bombarding a sample with a beam of ions to create secondary ions that can be analyzed using mass spectrometry. ToF-SIMS is used to analyze the surface chemistry of materials and can provide information about the distribution of elements and molecular fragments on a surface.

  3. Fourier Transform Infrared Spectroscopy (FTIR): FTIR is a technique used to analyze the chemical bonds in a sample by measuring the absorption of infrared radiation. FTIR is commonly used in materials science, chemistry, and biology to identify and quantify the presence of specific functional groups in a sample.


Other Database Pages Exist for this Phrase:
X-ray (X-Ray refers to the part of the electromagnetic ...)
XPS (XPS is the acronym of X-ray photoelectron ...)


Alternative Spellings (Synonyms): X-rays

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