A self-consistent model for simulating the spectral response of quantum well photodetector

This work is devoted to simulate the spectral response of multiple Al_xGa_1-xAs/GaAs quantum well photodetector, using a self-consistent model. The model is based on the solution of semiconductor transport equations in the bulk regions and the solution of Schrodinger equation to model the quantum well regions. The model includes the capture, escape, and recombination of photoexcited carriers in the quantum wells. The results show that the model can simulate the spectral response of the multiple quantum wells structure. This has been confirmed by comparing these results with experimental results. This model is used to predict the spectral response of the device and to optimize the structure parameters to achieve maximum spectral response.