Characteristics of II–VI Quantum Dot Infrared Photo-Detectors

  • C. M. S. Negi
  • Dharmendra Kumar
  • Jitendra Kumar
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 166)


We theoretically investigate the performance of a II–VI ZnCdSe/ZnSe- based quantum dot infrared photodetector (QDIP) utilizing intersubband hole transitions in the valence band of the QDs to absorb infrared radiation. The analysis starts with the computation of band structure via multi-band effective mass model based on the Luttinger-Kohn Hamiltonian with the inclusion of strain effects. The theoretical formulation is further used to determine the spectral responsivity and dark current characteristics of the QDIP.


Longe Relaxation Time Dark Current Density Intersubband Transition Intraband Transition Valence Band State 
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Copyright information

© Springer India 2015

Authors and Affiliations

  • C. M. S. Negi
    • 1
  • Dharmendra Kumar
    • 2
  • Jitendra Kumar
    • 2
  1. 1.Department of ElectronicsBanasthali VidyapithBanasthaliIndia
  2. 2.Department of Electronics EngineeringIndian School of MinesDhanbadIndia

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