Simulation of impacts of traps on the optical response of a butt-coupled InGaAs photodetector

Abstract

We studied the impacts of hole traps on the optical response of a butt-coupled In0.53Ga0.47As photodetector. Traps at the In0.53Ga0.47As/SiO2 interface deteriorate quantum efficiency and the two highest cut-off frequencies. Traps at the In0.53Ga0.47As/Si interface improve the lowest cut-off frequency.