Results 11 to 20 of about 6,152 (186)

Characterization of Complex Stacking of Semiconductors Through Near Field Imaging and Spectroscopy. [PDF]

open access: yesAdv Mater
SNOM imaging and spectroscopy on a mechanically cleaved facet is used to characterize the different layers of complex epitaxial heterostructures composed of a type II superlattice and highly doped semiconductors. Both the geometrical parameters of the stack and the optical properties of the individual layers and of the interfaces are retrieved, as well
Tailpied L   +8 more
europepmc   +2 more sources

Strain mapping in interband cascade lasers

open access: yesAIP Advances, 2022
A typical interband cascade laser wafer contains more than 2000 multilayers composed of InAs, AlSb, GaSb, and GaInSb. The lattice constants of the three materials except GaSb have a certain degree of mismatch with the GaSb substrate. Therefore, to grow a
Tian Yu   +11 more
doaj   +1 more source

Structural Characterization of ZnTe Grown by Atomic-Layer-Deposition Regime on GaAs and GaSb (100) Oriented Substrates [PDF]

open access: yesMaterials Research, 2017
This work presents the characterization of ZnTe nanolayers grown on GaAs and GaSb (100) substrates by the Atomic Layer Deposition (ALD) regime. Under certain conditions, the alternating exposition of a substrate surface to the element vapours makes ...
Roberto Saúl Castillo-Ojeda   +6 more
doaj   +1 more source

Molecular beam epitaxial growth and electronic transport of GaInSb/GaSb (111) quantum wells

open access: yesAIP Advances, 2022
We report on the epitaxial growth of antimony-based GaSb/Ga1−xInxSb/GaSb quantum wells (QWs) on the (111) plane. Different from the more common (001) heterostructures, (111) structures offer certain advantages in electronic properties, such as the ...
Siqi Yao, Yu-jiang Dong, Rui-Rui Du
doaj   +1 more source

Crystallization processes of thin polycrystalline layers of galium stybnide for thermophotovoltaic application

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2022
The cost of thermophotovoltaic converters can be reduced by making substrates of amorphous materials, which do not have an orienting effect, such as glass or fused quartz, for obtaining thin polycrystalline GaSb layers.
Yevgen Bahanov   +3 more
doaj   +1 more source

Temperature dependence of GaSb overgrowth of tungsten on GaSb (001) substrates using MOVPE [PDF]

open access: yes2008 20th International Conference on Indium Phosphide and Related Materials, 2008
We demonstrate GaSb overgrowth over tungsten patterns and that selective area epitaxy is achievable in the W/GaSb system. By controlling the facet growth at low temperatures, it is possible to embed a metal grating in a thin layer.
Astromskas, Gvidas   +3 more
openaire   +3 more sources

Temperature Dependence Study of Electrical and Electro-Optical Performances of Midwave Infrared Ga-Free T2SL Barrier Photodetector

open access: yesApplied Sciences, 2022
In this paper, we report on temperature dependence performances of a midwave infrared (MWIR) Ga-free InAs/InAsSb type-II superlattice (T2SL) barrier (XBn) photodetector grown by molecular beam epitaxy on n-type GaSb substrate.
Maxime Bouschet   +6 more
doaj   +1 more source

Study of interface asymmetry in InAs–GaSb heterojunctions [PDF]

open access: yes, 1995
We present reflection high energy electron diffraction, secondary ion mass spectroscopy, scanning tunneling microscopy and x‐ray photoelectron spectroscopy studies of the abruptness of InAs–GaSb interfaces.
Collins, D. A.   +4 more
core   +1 more source

Lateral Epitaxial Overgrowth of GaSb on GaAs and GaSb Substrates

open access: yesMicroscopy and Microanalysis, 2000
Abstract Lateral epitaxial overgrowth (LEO) technique has recently been used to improve the quality of semiconductor layers grown on a substrate. Previous studies with GaN grown on sapphire showed a significant reduction in dislocation density in LEO layers.
C K Inoki   +5 more
openaire   +1 more source

Transverse-Electric Cherenkov Radiation for TeV-Scale Particle Detection. [PDF]

open access: yesAdv Sci (Weinh)
Finite refractive indices of naturally existing materials place a fundamental ceiling on the momentum of detectable particles in traditional Cherenkov detectors. This work demonstrates transverse‐electric graphene plasmon Cherenkov radiation, breaking the momentum barrier for particle detection beyond the TeV scale with exceptional robustness and ...
Xie Z   +5 more
europepmc   +2 more sources

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