3D Numerical Modeling of Quantum Dot Photo Detector using Haar Wavelet Transform Babu B. Murali*, Kavitha K. R.**, Elakkiya P.* *Department of Electrical and Electronics Engineering, Paavai Engineering College, Namakkal, Tamil Nadu, India **Department of Electronics and Communication Engineering, Sona College of Technology, Salem, Tamil Nadu, India Online published on 14 October, 2016. Abstract The 3D numerical modeling of nano scale InGaAs quantum dot is developed and the characteristics of the device are analyzed using Haar wavelet transform. The exact potential and energy profile of the quantum dot are computed by obtaining the solution of 3D Poisson and Schrodinger equations. The developed model is applied in photo detector application. The dark current, photo current, responsivity, detectivity and efficiency of the model are calculated by considering the structural parameters quantum dot density, applied voltage, length of quantum dot layer, number of quantum dot layer and temperature. The model is validated by comparing the results obtained with the existing models. The developed model is applied in photo detector. The photo current, responsivity, detectivity and efficiency of the model are calculated by considering the structural parameters like quantum dot density, applied voltage, length of quantum dot layer, number of quantum dot layer, light intensity and temperature. The model is validated by comparing the results obtained with the existing models. Top Keywords Quantum Dot, Schrodinger equation, Poisson equation, Dark current, Photo current, responsivity. Top |