Numerical examination of silicon avalanche photodiodes operated in charge storage mode

Invited Review: Superlattice and multiquantum well avalanche photodetectors: physics, concepts and performance

“…Avalanche photodiodes (APDs) are also of importance in imaging devices [2], particularly for high resolution, high sensitivity, low light level operation. Under these conditions, the APD is typically operated in the charge storage mode [3,4].…”

Monte Carlo simulation of high-field transport and impact ionization in AlGaAs p+in+diodes

“…While much work has gone into calculating bulk impact ionization rates using this method [9][10][11][12][13] we are unaware of any serious attempt to use it for actual ensemble calculations of impact ionization in real III-V device structures. Indeed, authors tend to fall back on drift diffusion models, numerical models [14,15] or, if Monte Carlo models are used, then a Keldysh-type approximation [16] to the impact ionization process is usually employed or tabulated values of ionization rates as a function of energy, calculated using the sophisticated models, are utilized [17].…”