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 Pepper, Sam A. Keo, Cory J. Hill, Sir B. Rafol, Sarath D. Gunapala
Abstract
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.
Topics & Concepts
SuperlatticeInfraredOptoelectronicsInfrared detectorDetectorMaterials scienceWavelengthOpticsPhysicsAdvanced Semiconductor Detectors and MaterialsInfrared Target Detection MethodologiesAdvanced X-ray and CT Imaging