Nitride-based diodes with an in situ grown, 30 nm thick unactivated Mg-doped GaN cap layer were fabricated. It was found that we could significantly reduce leakage current by using the semi-insulating Mg-doped GaN cap layer. This is due to the thicker and higher potential barrier and the effective passivation of surface states when the semi-insulating Mg-doped GaN cap layer was inserted.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry