Results 21 to 30 of about 1,986,743 (286)

Semiclassical transport in semiconductor superlattices with boundaries [PDF]

open access: yes, 2004
In this thesis the electronic transport properties of semiconductor superlattices with boundaries are studied using the Boltzmann equation in relaxation time approximation.
Rieder, Bernhard
core   +1 more source

Fast Swept-Wavelength, Low Threshold-Current, Continuous-Wave External Cavity Quantum Cascade Laser

open access: yesNanoscale Research Letters, 2018
We present a low threshold-current and fast wavelength-tuning external cavity quantum cascade laser (EC-QCL) using a scanning galvanometer in the Littman-Metcalf cavity geometry.
Xuefeng Jia   +9 more
doaj   +1 more source

Electrical Characteristics And Thermal Stability Of Ti Contact To p-Gan. [PDF]

open access: yes, 2005
Wide band gap GaN semiconductor has a variety of applications in optoelectronic devices such as lightemitting diodes and laser ...
Hudeish, A.Y.   +4 more
core   +1 more source

Low Power Consumption Substrate-Emitting DFB Quantum Cascade Lasers

open access: yesNanoscale Research Letters, 2017
In the present work, an ultra-low power consumption substrate-emitting distributed feedback (DFB) quantum cascade laser (QCL) was developed. The continuous-wave (CW) threshold power dissipation is reduced to 0.43 W at 25 °C by shortening the cavity ...
Chuan-Wei Liu   +9 more
doaj   +1 more source

UV–Vis Transparent Conductive Film Based on Cross-Linked Ag Nanowire Network: A Design for Photoelectrochemical Device

open access: yesInorganics, 2022
The FTO/ITO transparent conductive films currently used in photoelectrochemical devices limit performance improvement due to their low conductivity, poor flexibility, and inability to transmit UV light.
Peiling Ren   +6 more
doaj   +1 more source

Impacts of LaOx Doping on the Performance of ITO/Al2O3/ITO Transparent RRAM Devices

open access: yes, 2021
Fully transparent ITO/LaAlO3/ITO structure RRAM (resistive random access memory) devices were fabricated on glass substrate, and ITO/Al2O3/ITO structure devices were set for comparison.
Hongxia Liu   +4 more
core   +1 more source

Effect the Technique of Light Trapping on the Performance of Simple Junction n-p Solar Cells Based on GaAs and Si [PDF]

open access: yesЖурнал нано- та електронної фізики, 2017
Light trapping enhances the absorption of active materials in photovoltaic cells. The use of light trapping results in a thinner active region in a solar cell, which lowers the production cost by reducing the amount of material used, and increases the ...
S. Nour, A. Belghachi
doaj   +1 more source

Moving towards high carrier mobility power devices in silicon and silicon carbide [PDF]

open access: yes, 2016
This thesis reports on recent progress regarding the characterization, design and fabrication of modern power semiconductor devices in Silicon (Si) as well as in the promising wide band gap material Silicon Carbide (SiC).
Rossmann, Harald R.
core   +1 more source

Stable Single-Mode Operation of Distributed Feedback Quantum Cascade Laser by Optimized Reflectivity Facet Coatings

open access: yesNanoscale Research Letters, 2018
In this work, quantum cascade lasers (QCLs) based on strain compensation combined with two-phonon resonance design are presented. Distributed feedback (DFB) laser emitting at ~ 4.76 μm was fabricated through a standard buried first-order grating and ...
Dong-Bo Wang   +10 more
doaj   +1 more source

The design and optimization of novel elliptic cylindrical through‐silicon via and its temperature characterization

open access: yesEngineering Reports, 2022
Through‐silicon via (TSV) technology is a key technology to realize multi‐layer chips and its structure model and transmission characteristics have attracted much attention.
Wenbo Guan   +3 more
doaj   +1 more source

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