Type-II superlattices for SWaP and high-resolution detectors at IRnova

2021 ◽  
Author(s):  
Linda Höglund ◽  
Shagufta Naureen ◽  
Ruslan Ivanov ◽  
Marie Delmas ◽  
David Ramos ◽  
...  
Keyword(s):  
High Resolution ◽  
Type Ii ◽  
Type Ii Superlattices

scholarly journals A Study of Defects in InAs/GaSb Type-II Superlattices Using High-Resolution Reciprocal Space Mapping

Materials ◽  
2021 ◽  
Vol 14 (17) ◽  
pp. 4940
Author(s):  
Iwona Sankowska ◽  
Agata Jasik ◽  
Krzysztof Czuba ◽  
Jacek Ratajczak ◽  
Paweł Kozłowski ◽  
...  
Keyword(s):  
High Resolution ◽  
Diffuse Scattering ◽  
Defect Density ◽  
Stacking Faults ◽  
Diffraction Method ◽  
Reciprocal Space ◽  
Type Ii ◽  
Scattering Intensity ◽  
Type Ii Superlattices ◽  
Diffuse Scattering Intensity

In this paper, he study of defects in InAs/GaSb type-II superlattices using high-resolution an x-ray diffraction method as well as scanning (SEM) and transmission (TEM) electron microscopy is presented. The investigated superlattices had 200 (#SL200), 300 (#SL300), and 400 (#SL400) periods and were grown using molecular beam epitaxy. The growth conditions differed only in growth temperature, which was 370 °C for #SL400 and #SL200, and 390 °C for #SL300. A wings-like diffuse scattering was observed in reciprocal space maps of symmetrical (004) GaSb reflection. The micrometer-sized defect conglomerates comprised of stacking faults, and linear dislocations were revealed by the analysis of diffuse scattering intensity in combination with SEM and TEM imaging. The following defect-related parameters were obtained: (1) integrated diffuse scattering intensity of 0.1480 for #SL400, 0.1208 for #SL300, and 0.0882 for #SL200; (2) defect size: (2.5–3) μm × (2.5–3) μm –#SL400 and #SL200, (3.2–3.4) μm × (3.7–3.9) μm –#SL300; (3) defect diameter: ~1.84 μm –#SL400, ~2.45 μm –#SL300 and ~2.01 μm –#SL200; (4) defect density: 1.42 × 106 cm−2 –#SL400, 1.01 × 106 cm−2 –#SL300, 0.51 × 106 cm−2 –#SL200; (5) diameter of stacking faults: 0.14 μm and 0.13 μm for #SL400 and #SL200, 0.30 μm for #SL300.

Diversity of Glycoprotein Deficiencies in Glanzmann’s Thrombasthenia

1985 ◽  
Vol 54 (03) ◽  
pp. 626-629 ◽  
Author(s):  
M Meyer ◽  
F H Herrmann
Keyword(s):  
High Resolution ◽  
Gel Electrophoresis ◽  
Type Ii ◽  
Two Dimensional ◽  
Two Dimensional Gel Electrophoresis ◽  
Structural Variant ◽  
Glanzmann’S Thrombasthenia ◽  
Crossed Immunoelectrophoresis ◽  
Glanzmann's Thrombasthenia ◽  
Platelet Proteins

SummaryThe platelet proteins of 9 thrombasthenic patients from 7 families were analysed by high resolution two-dimensional gel electrophoresis (HR-2DE) and crossed immunoelectrophoresis (CIE). In 7 patients both glycoproteins (GPs) IIb and Ilia were absent or reduced to roughly the same extent. In two related patients only a trace of GP Ilb-IIIa complex was detected in CIE, but HR-2DE revealed a glycopeptide in the position of GP Ilia in an amount comparable to type II thrombasthenia. This GP Ilia-like component was neither recognized normally by anti-GP Ilb-IIIa antibodies nor labeled by surface iodination. In unreduced-reduced two-dimensional gel electrophoresis two components were observed in the region of GP Ilia. The assumption of a structural variant of GP Ilia in the two related patients is discussed.

Electroabsorption in the type II superlattices

1992 ◽  
Vol 60 (16) ◽  
pp. 1969-1971 ◽  
Author(s):  
Shaozhong Li ◽  
Jacob B. Khurgin
Keyword(s):  
Type Ii ◽  
Type Ii Superlattices

Impact of Be-doping on the material properties of InAs/InAsSb type-II superlattices for infrared detection

2013 ◽  
Author(s):  
Elizabeth H. Steenbergen ◽  
Said Elhamri ◽  
T. J. Asel ◽  
William C. Mitchel ◽  
Sarah T. Hierath ◽  
...  
Keyword(s):  
Material Properties ◽  
Infrared Detection ◽  
Type Ii ◽  
Type Ii Superlattices
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