Photocarrier injection effect in hydrogenerated amorphous carbon doped with nitrogen/p-silicon heterostructures

We report fabrication of p–n heterojunctions between hydrogenerated amorphous carbon doped with nitrogen (a-C:H-N, n-type)/p-silicon exhibiting good rectifying current–voltage characteristics. All such heterojunctions show the photocarrier injection effect, illustrating the control of transport properties of a-C:H-N films due to photogenerated hole injection from silicon.