Leakage current and breakdown of GaN-on-Silicon vertical structures

Abstract

A TCAD-based approach has been used to investigate the leakage current and breakdown regime of vertical GaN/AlGaN/Si structures at different ambient temperatures. A good agreement with experimental data has been obtained by implementing both trap-assisted and Poole-Frenkel conduction mechanisms into the buffer layers. The latter mechanisms have been proven… (More)

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