Characterisation of rhenium Schottky contacts on n-type AlxGa1–xN

Abstract
The electrical characteristics of Re Schottky contacts on AlxGa1–xN (x = 0, 0.15, 0.22 and 0.26) grown by MOCVD on sapphire substrates have been investigated. The effective barrier heights were obtained from current-voltage and capacitance-voltage measurements and were found to increase with aluminium concentration.