Radial space-charge-limited electron flow in semi-insulating GaN:Fe


The local and average density of electrically active traps in semi-insulating GaN:Fe are studied using space-charge-limited currents injected by a point contact.

Radial SCLC currents in GaN
Distribution of the injected charge in a GaN:Fe sample when a (a) negative or (b) positive bias is applied to the point contact. Arrows on current lines indicate the direction of electron flow