Results 91 to 100 of about 314,945 (334)

Compositionally Graded Indium Gallium Nitride Solar Cells [PDF]

open access: yes, 2017
For the past several decades, methods to harvest solar energy have been investigated intensively. A majority of the work done in this field has been on solar cells made with silicon – the most mature semiconductor material.
Matthews, Christopher
core   +2 more sources

Tin Oxide‐Anchored MXene Composites for Enhanced Hydrogen Evolution in Alkaline Media

open access: yesAdvanced Materials Interfaces, EarlyView.
The schematic illustrates a SnO2/MXene heterostructure for efficient hydrogen evolution. SnO2 nanoparticles are uniformly anchored on conductive MXene nanosheets, enhancing charge transfer and catalytic activity. The MXene substrate provides high electrical conductivity and abundant active sites, while SnO2 facilitates water adsorption and dissociation.
Pratik Shinde   +8 more
wiley   +1 more source

Stretching magnetism with an electric field in a nitride semiconductor

open access: yesNature Communications, 2016
The wurtzite crystal structure of nitride semiconductors results in strong piezoelectricity. Here, the authors also achieve electric-field control of the magnetization of gallium manganese nitride, thus showing that piezoelectric and magnetoelectric ...
D. Sztenkiel   +13 more
doaj   +1 more source

Liquid-Metal-Enabled Synthesis of Aluminum-Containing III-Nitrides by Plasma-Assisted Molecular Beam Epitaxy

open access: yes, 2016
Nitride films are promising for advanced optoelectronic and electronic device applications. However, some challenges continue to impede development of high aluminum-containing devices.
Liang, Yu-Han, Nuhfer, T., Towe, Elias
core  

Growth of single-crystal gallium nitride [PDF]

open access: yes, 1970
Use of ultrahigh purity ammonia prevents oxygen contamination of GaN during growth, making it possible to grow the GaN at temperatures as high as 825 degrees C, at which point single crystal wafers are deposited on /0001/-oriented sapphire ...
Clough, R., Richman, D., Tietjen, J.
core   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

Optical Design of Dilute Nitride Quantum Wells Vertical Cavity Semiconductor Optical Amplifiers for Communication Systems

open access: yesARO-The Scientific Journal of Koya University, 2016
III-V semiconductors components such as Gallium Arsenic (GaAs), Indium Antimony (InSb), Aluminum Arsenic (AlAs) and Indium Arsenic (InAs) have high carrier mobilities and direct energy gaps.
Faten A. Chaqmaqchee
doaj   +1 more source

Borophene: Crucial Challenges and the Way Forward

open access: yesAdvanced Science, EarlyView.
This review explores the challenges and progress in borophene research, focusing on synthesis strategies, structural properties, and potential applications. It highlights key experimental breakthroughs, discusses theoretical insights into borophene's unique features, and addresses pathways for overcoming stability and scalability issues.
Zhixuan Li   +3 more
wiley   +1 more source

Applications and Implications of Wide-Bandgap Technologies in Microgrids: A Review

open access: yesEnergies
The next evolution in power electronics is being driven by wide-bandgap materials—particularly silicon carbide and gallium nitride power semiconductor devices—which increase efficiency and power density, thus ensuring their integration into high ...
Daniel Burmester   +2 more
doaj   +1 more source

Equations for filling factor estimation in opal matrix

open access: yes, 2005
We consider two equations for the filling factor estimation of infiltrated zinc oxide (ZnO) in silica (SiO_2) opal and gallium nitride in ZnO opal. The first equation is based on the effective medium approximation, while the second one - on Maxwell ...
Abrarov   +34 more
core   +1 more source

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