Results 21 to 30 of about 214,302 (291)

Electronic continuum states and far infrared absorption of InAs/GaAs quantum dots [PDF]

open access: yes, 2005
The electronic continuum states of InAs/GaAs semiconductor quantum dots embedded in a GaAs/AlAs superlattice are theoretically investigated and the far infrared absorption spectra are calculated for a variety of structures and polarizations.
Bastard, Gerald   +3 more
core   +3 more sources

Chemical studies of the passivation of GaAs surface recombination using sulfides and thiols [PDF]

open access: yes, 1991
Steady-state photoluminescence, time-resolved photoluminescence, and x-ray photoelectron spectroscopy have been used to study the electrical and chemical properties of GaAs surfaces exposed to inorganic and organic sulfur donors. Despite a wide variation
Lewis, Nathan S.   +3 more
core   +1 more source

Comparative Transcriptome Profiling Reveals Defense-Related Genes Against Ralstonia solanacearum Infection in Tobacco

open access: yesFrontiers in Plant Science, 2021
Bacterial wilt (BW) caused by Ralstonia solanacearum (R. solanacearum), is a vascular disease affecting diverse solanaceous crops and causing tremendous damage to crop production.
Xiaoying Pan   +12 more
doaj   +1 more source

Modelo compacto con capacidad de predicción de parámetros físicos para amplificadores de RF

open access: yesRevista Facultad de Ingeniería, 2019
En el presente trabajo se ha presentado un análisis de transistores de efecto de campo usando fuentes de voltaje pulsadas. Se han realizado medidas de microondas en dispositivos de tecnología HEMT’s y LDMOS poniendo en evidencia la diferencia entre el ...
Guillermo Rafael-Valdivia, Ph. D.
doaj   +1 more source

Structural Features and Photoelectric Properties of Si-Doped GaAs under Gamma Irradiation

open access: yesNanomaterials, 2020
GaAs has been demonstrated to be a promising material for manufacturing semiconductor light-emitting devices and integrated circuits. It has been widely used in the field of aerospace, due to its high electron mobility and wide band gap.
Ye Shen   +8 more
doaj   +1 more source

Effect of n+-GaAs thickness and doping density on spin injection of GaMnAs/n+-GaAs Esaki tunnel junction

open access: yes, 2005
We investigated the influence of n+-GaAs thickness and doping density of GaMnAs/n+-GaAs Esaki tunnel junction on the efficiency of the electrical electron spin injection. We prepared seven samples of GaMnAs/n+-GaAs tunnel junctions with different n+-GaAs
Chiba   +10 more
core   +1 more source

Dislocation Filter Based on LT-GaAs Layers for Monolithic GaAs/Si Integration

open access: yesNanomaterials, 2022
The use of low-temperature (LT) GaAs layers as dislocation filters in GaAs/Si heterostructures (HSs) was investigated in this study. The effects of intermediate LT-GaAs layers and of the post-growth and cyclic in situ annealing on the structural ...
Mikhail O. Petrushkov   +12 more
doaj   +1 more source

Predicion of charge separation in GaAs/AlAs cylindrical Russian Doll nanostructures

open access: yes, 1997
We have contrasted the quantum confinement of (i) multiple quantum wells of flat GaAs and AlAs layers, i.e. $(\GaAs)_{m}/(\AlAs)_n/(\GaAs)_p/(\AlAs)_q$, with (ii) ``cylindrical Russian Dolls'' -- an equivalent sequence of wells and barriers arranged as ...
A. Franceschetti   +15 more
core   +1 more source

X-ray rocking curve study of Si-implanted GaAs, Si, and Ge [PDF]

open access: yes, 1982
Crystalline properties of Si-implanted GaAs, Si, and Ge have been studied by Bragg case double-crystal x-ray diffraction. Sharp qualitative and quantitative differences were found between the damage in GaAs on one hand and Si and Ge on the other.
Glass, H. L.   +3 more
core   +1 more source

Photonic and Terahertz applications as the next gallium arsenide market driver [PDF]

open access: yesModern Electronic Materials, 2020
Analysis of current GaAs and related device market initiated in a number of earlier works has been continued. Binary semiconductor GaAs compound is a conventional MW electronics material.
Nikolay A. Kulchitsky   +2 more
doaj   +3 more sources

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