Reflective metal/semiconductor tunnel junctions for hole injection in AlGaN UV LEDs
Reflective metal/semiconductor tunnel junctions for hole injection in AlGaN UV LEDs
In this work, we investigate the use of nanoscale polarization engineering to achieve efficient hole injection from metals to ultra-wide bandgap AlGaN, and we show that UV-reflective aluminum (Al) layers can be used for hole injection into p-AlGaN. The dependence of tunneling on the work function of the metal was …