What determines the amount of current flow in a pure semiconductor materials?

The amount of current flow in pure semiconductor materials is primarily determined by factors such as temperature, intrinsic carrier concentration, and the presence of external electric fields. As temperature increases, more electrons gain enough energy to jump from the valence band to the conduction band, increasing conductivity. Additionally, the intrinsic carrier concentration, which depends on the material properties, influences how many charge carriers are available for conduction. Finally, applying an external electric field can drive the movement of these charge carriers, further affecting the current flow.