Kai Sun

Associate Research Scientist

kaisun@umich.edu

2800 Plymouth Road, NCRC Building 22 G013

T: (734) 936-3353

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Kratos Axis Ultra X-ray Photoelectron Spectroscopy

Location: Room G019, Building 22 of The North Campus Research Complex

X-ray Photoelectron Spectroscopy (XPS), also known as Electron Spectroscopy for Chemical Analysis (ESCA), uses soft X-rays to produce photoelectrons from the surface layers of atoms in a solid sample. The emitted electrons are analyzed according to their kinetic energy and the spectrum so produced is used to identify the elements present and their chemical states.

  • Spectrum mode: Using the monochromated Al source: 2 x 1 mm with energy resolution ~0.5ev.
  • Small area spectroscopy: ~ several µm.
  • Imaging mode: ~ 900µm x 900µm with spatial resolution ~ 6µm.