TrappingEffekte
TrappingEffekte refer to phenomena in which particles, charge carriers, excitons, or molecules become temporarily immobilized in localized energy wells, defect sites, or transient binding states. The trapping process alters transport, optical, and chemical behavior by removing entities from the freely moving population for varying periods, until they are released (detrapped) again. Traps can be intrinsic defects, impurities, interfaces, or dynamic states at surfaces, and they may be static or fluctuant in charge or occupancy.
In solid-state physics, trap states in the band gap can capture electrons or holes, reducing mobility and
Measurement and analysis methods include deep-level transient spectroscopy (DLTS), thermally stimulated luminescence, time-resolved spectroscopy, and impedance
Examples of materials exhibiting TrappingEffekte include silicon with oxide/interface traps, wide-bandgap oxides with vacancies, quantum dots