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   Articles with "strained layer" as a keyword



Development of InAs/InAsSb Type II Strained-Layer Superlattice Unipolar Barrier Infrared Detectors

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recommendations! Published in 2019 at "Journal of Electronic Materials"

DOI: 10.1007/s11664-019-07255-x

Abstract: We recently reported mid-wavelength infrared (MWIR) InAs/InAsSb type II strained-layer superlattice (T2SLS) unipolar barrier detectors and focal-plane arrays with significantly higher operating temperature than InSb. Herein, we document the development leading to the MWIR InAs/InAsSb T2SLS… read more here.

Keywords: inassb type; unipolar barrier; layer superlattice; strained layer ... See more keywords
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Sb-induced strain fluctuations in a strained layer superlattice of InAs/InAsSb

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recommendations! Published in 2018 at "Journal of Applied Physics"

DOI: 10.1063/1.4993673

Abstract: We show that Sb substitution for As in a MBE grown InAs/InAsSb strained layer superlattice (SLS) is accompanied by significant strain fluctuations. The SLS was observed using scanning transmission electron microscopy along the [100] zone… read more here.

Keywords: microscopy; layer superlattice; strained layer; strain fluctuations ... See more keywords
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Visualizing period fluctuations in strained-layer superlattices with scanning tunneling microscopy

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recommendations! Published in 2018 at "Applied Physics Letters"

DOI: 10.1063/1.5008865

Abstract: We show how cross-sectional scanning tunneling microscopy (STM) may be used to accurately map the period fluctuations throughout epitaxial, strained-layer superlattices based on the InAs/InAsSb and InGaAs/InAlAs material systems. The concept, analogous to Bragg's law… read more here.

Keywords: tunneling microscopy; microscopy; period; strained layer ... See more keywords
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Interfacial Mixing Analysis for Strained Layer Superlattices by Atom Probe Tomography

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recommendations! Published in 2018 at "Crystals"

DOI: 10.3390/cryst8110437

Abstract: Quantum wells and barriers with precise thicknesses and abrupt composition changes at their interfaces are critical for obtaining the desired emission wavelength from quantum cascade laser devices. High-resolution X-ray diffraction and transmission electron microscopy are… read more here.

Keywords: atom probe; interfacial mixing; strained layer; probe tomography ... See more keywords