Results 1 to 10 of about 14,530 (266)

Observation of nuclear gamma resonance with superconducting tunnel junction detectors

AIP Advances, 2016
Nb-based superconducting tunnel junction detectors have been used for the registration of electrons following a nuclear gamma resonance (Mössbauer effect).
M. G. Kozin, I. L. Romashkina, L. V. Filippenko, V. P. Koshelets   +3 more
doaj   +1 more source

Modelling of Dual-Junction Solar Cells including Tunnel Junction

Advances in Condensed Matter Physics, 2013
Monolithically stacked multijunction solar cells based on III–V semiconductors materials are the state-of-art of approach for high efficiency photovoltaic energy conversion, in particular for space applications.
Abdelaziz Amine, Yamina Mir, Mimoun Zazoui   +2 more
doaj   +1 more source

Simulation Analysis of the Distance Between Tunnels at the Bridge-Tunnel Junction of Mountainous Expressway on Driving Safety Under Crosswinds

IEEE Access, 2021
To analyze the influence of the distance between tunnels at the bridge-tunnel junction in the mountainous area on the driving safety under crosswind, a vehicle dynamics model is established by Carsim software.
Lu Wang, Shuqi Li, Bing Hui
doaj   +1 more source

Aerodynamic Performance of a High-Speed Train Passing through Three Standard Tunnel Junctions under Crosswinds

Applied Sciences, 2020
The aerodynamic performance of a high-speed train passing through tunnel junctions under severe crosswind condition was numerically investigated using improved delayed detached-eddy simulations (IDDES). Three ground scenarios connected with entrances and
Xiujuan Miao, Kan He, Guglielmo Minelli, Jie Zhang, Guangjun Gao, Hongliang Wei, Maosheng He, Sinisa Krajnovic   +7 more
doaj   +1 more source

Basic Concepts and Interfacial Aspects of High-Efficiency III-V Multijunction Solar Cells

CHIMIA, 2007
Among various types of solar cells, MOVPE-grown triple-junction III-V compound semiconductors are today's most efficient photovoltaic devices with conversion efficiencies exceeding 40%.
B. Erol Sağol, Ulf Seidel, Nadine Szabó, Klaus Schwarzburg, Thomas Hannappel   +4 more
doaj   +1 more source

Uncovering anisotropic effects of electric high-moment dipoles on the tunneling current in $$\delta$$ δ -layer tunnel junctions

Scientific Reports, 2023
The precise positioning of dopants in semiconductors using scanning tunneling microscopes has led to the development of planar dopant-based devices, also known as $$\delta$$ δ layer-based devices, facilitating the exploration of new concepts in classical
Juan P. Mendez, Denis Mamaluy
doaj   +1 more source

Tunneling assisted p-contact free GaN-InGaN green light-emitting diodes

Journal of Information Display
The effects of bottom tunnel junction (TJ) on optoelectronic characteristics of green light-emitting diodes are analyzed numerically. Our proposed LED has enhanced internal quantum efficiency (IQE), radiative recombination rate, and carrier concentration
Jamshad Bashir, Muhammad Usman, Shazma Ali, Laraib Mustafa   +3 more
doaj   +1 more source

Tunnel magnetoresistance of magnetic molecules with spin-vibron coupling

AIP Advances, 2017
The effect of molecular vibrations on the tunnel magnetoresistance (TMR) of a magnetic tunnel junction with a single spin-anisotropic molecule interconnecting its electrodes is investigated theoretically. We demonstrate that if these vibrations couple at
Ahmed Kenawy, Janine Splettstoesser, Maciej Misiorny   +2 more
doaj   +1 more source

Magnetoresistance of galfenol-based magnetic tunnel junction

AIP Advances, 2015
The manipulation of ferromagnetic layer magnetization via electrical pulse is driving an intense research due to the important applications that this result will have on memory devices and sensors.
B. Gobaut, G. Vinai, C. Castán-Guerrero, D. Krizmancic, H. Rafaqat, S. Roddaro, G. Rossi, G. Panaccione, M. Eddrief, M. Marangolo, P. Torelli   +10 more
doaj   +1 more source

Performance Enhancement of InGaP/GaAs Dual-Junction Solar Cells Through BSF Layer Optimization and Hetero-Tunnel Junction

East European Journal of Physics
This study focuses on the simulation and optimization of an InGaP/GaAs dual-junction solar cells using Silvaco Atlas software, with a special emphasis on the incorporation of a hetero tunnel junction.
Ikram Zidani, Zouaoui Bensaad, Loumafak Hafaifa, Hamza Abid, Ahmed Hafaifa   +4 more
doaj   +1 more source