M. Mandurrino, G. Verzellesi, M. Goano, M. Vallone, F. Bertazzi, G. Ghione, M. Meneghini, G. Meneghesso, E. Zanoni
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Trap-assisted tunneling in InGaN/GaN LEDs: Experiments and physics-based simulation
We present results from a combined experimental and numerical investigation of a blue InGaN/GaN LED test structure grown on a SiC substrate, confirming that tunneling represents a critical contribution to the sub-threshold forward-bias current and discussing the relative importance of different trap-assisted electron tunneling processes.