Photoemission Spectroscopy

Photoemission spectroscopy is a technique used by scientists to study the electronic structure of materials. It involves shining light, typically ultraviolet or X-ray photons, onto a material's surface. The energy from the light causes electrons to be emitted from the material. By measuring these emitted electrons' energies and angles, researchers can determine how electrons are arranged inside the material, which reveals important properties like conductivity, chemical composition, and surface characteristics. This method provides a window into the microscopic world of electrons, helping us understand how materials behave at the atomic level.