A physical based photodiode model

Abstract

This work presents an analytical model which photocurrent of the device can be divided into contributions of describes the opto-electronic conversion of a planar double drift and diffusion currents. For the calculation of the diffusion photodiode. Our model predicts the steady-and the dynamiccurrents we have to solve the diffusion equation within the state of the photodiode with high accuracy without using any fit neutral regions I-III. To come finally to the transfer function of parameters as will be shown by comparison with numerical and the device we excite the photodiode by an optical delta-Diracexperimental results.function and apply the Laplace-transformation on the diffusion