TU Berlin

Arbeitsgruppe Prof. Dr. M. DähnePhoto-electron spectroscopy (PES)

Inhalt des Dokuments

zur Navigation

Photo-electron spectroscopy (PES)

Photo-electron spectroscopy (PES) is a technique for the investigation of the electronic and chemical properties of solids. In a PES experiment, monochromatic photons are absorbed by a solid, and the excited electrons, which leave the surface, are analyzed with respect to their kinetic energy. In this way, the electron-energy distribution can be recorded, yielding the binding energies of the electrons in the solid. Because of the limited mean-free path of the electrons below 10 Å, PES is very surface sensitive. With angle-resolved photoemission spectroscopy (ARPES) also information on the momentum of the electrons can be derived, allowing to determine the energy dispersion of the electronic bands.

Navigation

Direktzugang

Schnellnavigation zur Seite über Nummerneingabe