Abstract:Electrical characteristics of low‐Mg‐doped p‐Al0.02–0.07Ga0.98–0.93N and p‐In0.02Ga0.98N Schottky contacts were investigated. A memory effect was revealed in the current–voltage (I–V) characteristics, which is found also in p‐GaN contacts and may be due to charge and discharge of holes to acceptor‐type interfacial defects. High‐temperature isothermal transient spectroscopy revealed that the defect densities in the Al0.02Ga0.98N and In0.02Ga0.98N samples were nearly half that in the GaN samples. A large reverse… Show more
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