id author title date pages extension mime words sentence flesch summary cache txt qv33rv06f6w Pei Zhao Novel High Frequency Devices with Graphene and GaN 2015 .txt text/plain 785 40 49 In chapter 4, we compared the performance of GaN Schottky diodes on bulk GaN substrates and GaN-on-sapphire substrates. The forward bias IV characteristics of GaN Schottky diodes on bulk GaN substrate and GaN-on-sapphire substrate are well explained by the thermionic emission model. cache/qv33rv06f6w.txt txt/qv33rv06f6w.txt