Avalanche mode of high-voltage overvolting p+-i-n+-structures switching into conductive state by pulsed lighting

摘要

A simple analytical theory of high-voltage overvolting p+-i-n+-structurespicosecond switching into conducting state by pulsed lighting has beendeveloped. Relationship between parameters of structure, light pulse, externalcircuit and the main characteristics of the process (pulse current amplitude,delay time and duration of switching process) have been obtained and confirmedby numerical simulation. It was shown that the energy of picosecond light pulsethat is needed for effective switching can be reduced by 6-7 orders ofmagnitude due to the intensive avalanche multiplication of electrons and holes.