Quantum Theory of Photoelectron Emission

The Quantum Theory of Photoelectron Emission describes how light can cause electrons to be ejected from materials. When energy from photons (light particles) hits a surface, it can transfer enough energy to electrons, allowing them to overcome the attractive forces holding them in place. This phenomenon is crucial in understanding how solar cells work and underpins technologies like photoelectron spectroscopy, which helps scientists analyze materials. Essentially, it illustrates the interaction between light and matter at a quantum level, revealing the dual nature of light and the behavior of electrons.