Excitonbildning
Excitonbildning, also known as exciton formation, is a fundamental process in the field of semiconductor physics and materials science. It refers to the creation of an exciton, which is a bound state of an electron and an electron hole. This process typically occurs when a semiconductor material absorbs a photon with energy greater than its band gap. The absorbed photon excites an electron from the valence band to the conduction band, leaving behind a hole in the valence band. The electron and hole then attract each other due to their opposite charges, forming an exciton.
Exciton formation is crucial in various applications, including photovoltaics, light-emitting diodes, and quantum computing. In photovoltaic
The properties of excitons, such as their binding energy and lifetime, depend on the material's band structure