Attosecond dynamics of the photoelectric effect at the bandgap of a single-element layered system

In this dissertation, an archetypal quantum phenomenon of great importance to fields ranging from surface (photo)chemistry to condensed matter theory to the fabrication of future devices, is investigated. The influence of an energetic band gap on the time delay of the photoelectric effect, i.e. the delay of electron escape from a solid after excitation by high-energy light pulses on the attosecond time scale, is measured. The reasons for this delay are discussed and a dependence on the band structure of a single-element layer system is established.