Title :
Optimisation threshold parameters of multiple quantum well infra-red photodetector
Author :
Serzhenko, F. ; Shadrin, V.
Author_Institution :
Phys. Tech. Inst., Moscow, USSR
fDate :
10/1/1991 12:00:00 AM
Abstract :
Detectivity of the multiple quantum well photodetector has been calculated for background limited infra-red performance. Depolarisation effects have been taken into account. It is shown that detectivity depends nonmonotonically on the concentration of electrons in wells, a phenomenon resulting from depolarisation effects. As a result, an optimal concentration of a doping impurity which corresponds to the maximum of detectivity exists
Keywords :
infrared detectors; optimisation; semiconductor quantum wells; IR photodetectors; MQW IR detectivity; SQW; background limited; depolarisation effects; multiple quantum well; optimal concentration; optimisation threshold parameters; semiconductors; well electron concentration;
Journal_Title :
Optoelectronics, IEE Proceedings J
