Common emitter operation of III-N HETs using AlGaN and InGaN polarization-dipole induced barriers

Abstract

In conclusion, we show that injection energy and base thickness are the critical parameters for achieving gain in III-N HETs. It is important to make sure that high leakage currents and large base resistance do not result in inaccurate extraction of gain and transfer ratio. A better understanding of the design space is required to achieve CE current gain and move towards our goal of building a high-frequency III-N HET.