Si and Mg pair-doped interlayers for improving performance of AlGaN/GaN heterostructure field effect transistors grown on Si substrate |
(a) Schematic of AlGaN/GaN with Si and Mg pair-doped GaN interlayers. (b) SIMS profile of Si and Mg concentrations in sample B1. Inset is the conduction band diagram for the proposed HFET structure. |