Reset Operation of Quantum-Well Infrared Phototransistors

  title={Reset Operation of Quantum-Well Infrared Phototransistors},
  author={Zhenghua An and Toyotoshi Ueda and Kazuhiko Hirakawa and Susumu Komiyama},
  journal={IEEE Transactions on Electron Devices},
An improved operation of charge-sensitive infrared (IR) phototransistor (CSIP) is demonstrated by adding a reset function. The phototransistor is fabricated in a GaAs/AlGaAs double quantum-well (QW) structure. The upper QW is lithographically defined to form an isolated island. Under IR illumination (lambda ~ 14 mum), excited electrons escape from the… CONTINUE READING