R
Romain Chevallier
Researcher at Northwestern University
Publications - 26
Citations - 695
Romain Chevallier is an academic researcher from Northwestern University. The author has contributed to research in topics: Dark current & Quantum efficiency. The author has an hindex of 12, co-authored 26 publications receiving 584 citations.
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InAs/InAs1−xSbx type-II superlattices for high performance long wavelength infrared detection
TL;DR: In this article, high performance long-wavelength infrared nBn photodetectors based on InAs/InAs1−xSbx type-II superlattices on GaSb substrate have been demonstrated.
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Bias-selectable dual-band mid-/long-wavelength infrared photodetectors based on InAs/InAs1−xSbx type-II superlattices
TL;DR: In this article, a bias-selectable mid/long-wavelength infrared photodetector based on InAs/InAs1−xSbx type-II superlattices on GaSb substrate has been demonstrated.
Journal ArticleDOI
High performance photodiodes based on InAs/InAsSb type-II superlattices for very long wavelength infrared detection
TL;DR: Very long wavelength infrared photodetectors based on InAs/InAsSb type-II superlattices are demonstrated on GaSb substrate in this article, where a heterostructure photodiode was grown with 50% cut-off wavelength of 14.6μm.
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Type–II superlattices base visible/extended short–wavelength infrared photodetectors with a bandstructure–engineered photo–generated carrier extractor
TL;DR: Visible/extended short–wavelength infrared photodetectors with a bandstructure–engineered photo–generated carrier extractor based on type–II InAs/AlSb/GaSb superlattices have been demonstrated, with sensitivity down to visible wavelengths.
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Bias-selectable nBn dual-band long-/very long-wavelength infrared photodetectors based on InAs/InAs1-xSbx/AlAs1-xSbx type-II superlattices.
TL;DR: This design uses two different bandgap absorption regions separated by an electron barrier that blocks the transport of majority carriers to reduce the dark current density of the device, and will open new opportunities for multi–spectral LWIR and VLWIR imaging and detection.