Defect-Controlled p-Type Conductivity in an Ultrawide-Bandgap ZnGa2O4 Film
Ultrawide-bandgap (UWBG) semiconductors are central to next-generation power electronics and deep-UV optoelectronics, yet the absence of reliable p-type materials remains a critical bottleneck. Here, we demonstrate stable intrinsic p-type conductivity in the spinel UWBG oxide ZnGa2O4, epitaxially grown on c-plane sap...