Before revision: The following equation must be satisfied for a semiconductor under carrier injection conditions: where is the number of electrons, is the excess carriers injected into the semiconductor, and is the equilibrium concentration of electrons in the semiconductor The following relation must also be true, because for every electron injected a hole must also be created to keep a balance of charge: The assumption of low-level injection can be made regarding an n-type semiconductor, which affects the equations in the following way: Therefore and .
After revision: prashant meenaThe following equation must be satisfied for a semiconductor under carrier injection conditions: where is the number of electrons, is the excess carriers injected into the semiconductor, and is the equilibrium concentration of electrons in the semiconductor The following relation must also be true, because for every electron injected a hole must also be created to keep a balance of charge: The assumption of low-level injection can be made regarding an n-type semiconductor, which affects the equations in the following way: Therefore and .