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Accurate simulation of temperature-dependent dark current in hgcdte infrared detectors assisted by analytical modeling

Journal of Electronic Materials, ISSN: 0361-5235, Vol: 39, Issue: 7, Page: 981-985
2010
  • 47
    Citations
  • 0
    Usage
  • 18
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    47
    • Citation Indexes
      47
  • Captures
    18

Conference Paper Description

Resistance-voltage curves of n+-on-p Hg Cd Te infrared photodiodes were measured in the temperature range of 60 K to 120 K. Characteristics obtained experimentally were fitted by an improved simultaneous-mode nonlinear fitting process. Based on the extracted parameters, an efficient numerical simulation approach has been developed by inserting trap-assisted and band-to- band tunneling models into continuity equations as generation-recombination processes. Simulated dark-current characteristics were found to be in good agreement with the experimental data, demonstrating the validity of the nonlinear fitting process. Our work presents an efficient method for dark- current simulations over a wide range of temperatures and bias voltages, which is important for investigating mechanisms of carrier transport across the HgCdTe junction. © 2010 TMS.

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