Results 11 to 20 of about 367,607 (262)

The main elements of the holographic installation of non-destructive testing "Sofya Varvarchuk" [PDF]

open access: yesEPJ Web of Conferences
The paper investigates the installation Sofya Varvarchuk, which refers to measuring equipment, namely, devices for monitoring the topography of the microrelief of the surface of the part, as well as devices that control defects in the geometry of the ...
Belkin Evgeny, Poyarkov Vyacheslav
doaj   +1 more source

Shadow epitaxy for in-situ growth of generic semiconductor/superconductor devices

open access: yes, 2020
Uniform, defect-free crystal interfaces and surfaces are crucial ingredients for realizing high-performance nanoscale devices. A pertinent example is that advances in gate-tunable and topological superconductivity using semiconductor/superconductor ...
Aagesen, Martin   +8 more
core   +1 more source

Semiconductor quantum dots devices: Recent advances and application prospects [PDF]

open access: yes, 2006
In this paper, a brief review will be given on recent advances in semiconductor quantum dots based optoelectronic devices. The focus will be on two major application areas, i.e., telecom devices and high power light sources, where some device examples ...
Akiyama   +28 more
core   +1 more source

High Efficiency, Low Power-Consumption DFB Quantum Cascade Lasers Without Lateral Regrowth

open access: yesNanoscale Research Letters, 2017
Very low power-consumption distributed feedback (DFB) quantum cascade lasers (QCLs) at the wavelength around 4.9 μm were fabricated by conventional process without lateral regrowth of InP:Fe or using sidewall grating.
Zhi-Wei Jia   +10 more
doaj   +1 more source

Optical management in organic photovoltaic devices

open access: yesCarbon Energy, 2021
Due to their potentials in light‐weight, flexible, and semitransparent devices, organic photovoltaics are of great significance in the field of renewable energy.
Cheng Yang   +8 more
doaj   +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

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

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

Photoselective excited state dynamics in ZnO–Au nanocomposites and their implications in photocatalysis and dye-sensitized solar cells [PDF]

open access: yes, 2011
Improving the performance of photoactive solid-state devices begins with systematic studies of the metal–semiconductor nanocomposites (NCs) upon which such devices are based.
Baruah, Sunandan   +5 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

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