Applied Sciences (Dec 2022)

Complementary Barrier Infrared Detector Architecture for Long-Wavelength Infrared InAs/InAsSb Type-II Superlattice

  • David Z. Ting,
  • Alexander Soibel,
  • Arezou Khoshakhlagh,
  • Anita M. Fisher,
  • Brian J. Pepper,
  • Sam A. Keo,
  • Cory J. Hill,
  • Sir B. Rafol,
  • Sarath D. Gunapala

DOI
https://doi.org/10.3390/app122412508
Journal volume & issue
Vol. 12, no. 24
p. 12508

Abstract

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We describe the challenges for long- and very long-wavelength InAs/InAsSb type-II strained-layer superlattice infrared detectors, and provide an overview of progress in device architecture development for addressing them. Specifically, we have explored the complementary barrier infrared detector (CBIRD) that contains p-type InAs/InAsSb T2SLS absorbers for enhancing quantum efficiency, while also suppressing surface shunt current. We describe selected device results, and also provide references to additional results and more in-depth discussions.

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