Numerical Modeling of Native Defects in CVD Grown Diamond Photodetectors

Abstract

Diamond based photoconductors intended for use as radiation detectors are simulated in this work in SYNOPSYS© Sentaurus TCAD. Simulations are carried out by including the model of native defects for single-crystal and poly-crystal diamond detectors grown by CVD process. The models are validated by comparing the simulations with the reported experimental data. The explanation of the results in terms of the diamond band-gap and the comparative analysis of the dark currents of both the detectors have also been presented. The temperature dependant simulation is also presented to substantiate the developed model at high temperature.