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Background–limited long wavelength infrared InAs/InAs1− xSbx type-II superlattice-based photodetectors operating at 110 K

DOAJ
Authors: Abbas Haddadi, Arash Dehzangi, Sourav Adhikary, Romain Chevallier, Manijeh Razeghi

Year

2017

Paper ID

15503

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

89

Citations

49

Abstract

We report the demonstration of high-performance long-wavelength infrared (LWIR) nBnphotodetectors based on InAs/InAs1− xSbx type-II superlattices. A new saw-toothsuperlatticedesign was used to implement the electron barrier of the photodetectors. The deviceexhibited a cut-off wavelength of ∼10 μ mat 77 K. The photodetector exhibited a peak responsivity of 2.65 A/W, corresponding to a quantum efficiency of 43%. With an R × A of 664 Ω · cm 2 and a dark current density of 8 × 10−5 A/cm2, under −80 mV bias voltage at 77 K, the photodetector exhibited aspecific detectivity of 4.72 × 1011 cm· Hz / Wand a background–limited operating temperature of 110 K.

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  • This paper contributes to the Quantum Chemistry research area in the Quantum Articles archive.
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  • We report the demonstration of high-performance long-wavelength infrared (LWIR) nBnphotodetectors based on InAs/InAs1− xSbx type-II superlattices.

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References & Citation Signals

[1] DOI https://doi.org/10.1063/1.4975619 [2] Publisher http://dx.doi.org/10.1063/1.4975619

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External citation index: OpenAlex citation signal • updated 2026-06-13 11:52:40

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