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home > analytical services > electron spectroscopy for chemical analysis (esca)
Electron Spectroscopy for Chemical Analysis (ESCA)Electron spectroscopy for chemical analysis (ESCA, also known as x-ray photoelectron spectroscopy or XPS) is a surface analysis technique used for obtaining chemical information about the surfaces of solid materials. The method utilizes an x-ray beam to excite a solid sample resulting in the emission of photoelectrons. An energy analysis of these photoelectrons provides both elemental and chemical bonding information about a sample surface. The relatively low kinetic energy of the photoelectrons gives ESCA a sampling depth of approximately 30 Å. ESCA can detect all elements from lithium to uranium with detection limits of ca. 0.1 atomic percent. The principal advantage of ESCA is its ability to look at a broad range of materials (polymers, glasses, fibers, metals, semi-conductors, paper, etc.) and to identify surface constituents as well as their chemical state. |
Analysis of Passivated Stainless Steel Analysis of Haze on Polyimide Substrate
surface • Determine atomic concentrations of elements present and their binding energies. Binding energies can help identify compounds present • Measure distribution of elements present as a function of depth
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Innovatech Labs offers a broad range of cleanliness testing, surface analytical techniques, organic spectroscopies, bulk testing methods, and consulting services. Contact us for more information. |
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