A Review on Conduction Mechanisms in Dielectric Films
Figure 26
Carriers distribution in dielectric film under carrier strong injection () in space-charge-limited conduction. (a) Strong injection (, , ), (b) trap-filled-limited (, , ): parts of traps are filled up (trapped behavior), and (c) space-charge-limited (, , ): all traps are filled up (trap-free behavior). and are the transition voltage at the departure from ohm’s law and TFL curve, respectively; is the concentration of injected carriers; is the concentration of thermally generated free carriers; is the trap density; is the carrier transit time; is the dielectric relaxation time; is the Fermi level; is the trapping level.
