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Title: Complementary barrier infrared detector (CBIRD) with double tunnel junction contact and quantum dot barrier infrared detector (QD-BIRD)
Authors: Ting, David Z.-Y
Soibel, Alexander
Khoshakhlagh, Arezou
Keo, Sam A.
Nguyen, Jean
Höglund, Linda
Mumolo, Jason M.
Liu, John K.
Rafol, Sir B.
Hill, Cory J.
Gunapala, Sarath D.
Keywords: infrared detectors
type-II superlattice
quantum dot
unipolar barrier
Issue Date: 17-Jun-2012
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2012.
Citation: Quantum Structured Infrared Photodetector International Conference, Cargese Corsica, France, June 17-22, 2012
Abstract: The InAs/GaSb type-II superlattice based complementary barrier infrared detector (CBIRD) has already demonstrated very good performance in long-wavelength infrared (LWIR) detection. In this work, we describe results on a modified CBIRD device that incorporates a double tunnel junction contact designed for robust device and focal plane array processing. The new device also exhibited reduced turn-on voltage. We also report results on the quantum dot barrier infrared detector (QD-BIRD). By incorporating self-assembled InSb quantum dots into the InAsSb absorber of the standard nBn detector structure, the QD-BIRD extend the detector cutoff wavelength from ~4.2 μm to 6 μm, allowing the coverage of the midwavelength infrared (MWIR) transmission window. The device has been observed to show infrared response at 225 K.
Appears in Collections:JPL TRS 1992+

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