Journal Article 2 Research Support, Non-U.S. Gov't 2 ohmic contacts Metals 1 Oxides 1 Research Support, U.S. Gov't, Non-P.H.S. 1 extraction efficiencies 1 mehr ... first-principles modeling 1 light emitting diodes 1 metal/oxide interfaces 1 scanning transmission electron microscopy 1 semipolar GaN planes 1 wet etching 1 x-ray and ultraviolet photoemission 1 weniger ...