Results 171 to 180 of about 138,462 (342)

High-Quality 4H-SiC Homogeneous Epitaxy via Homemade Horizontal Hot-Wall Reactor

open access: gold
Xiaoliang Gong   +6 more
openalex   +1 more source

A Van der Waals Material Exhibiting Room Temperature Broken Inversion Symmetry with Ferroelectricity

open access: yesAdvanced Science, EarlyView.
This study reports a βp$\ubeta^{\text{p}}$ phase of indium selenide showing ferroelectricity over large areas at room temperature in a low‐dimensional limit. It is found that indium selenide films with βp$\ubeta^{\text{p}}$ layers display electric field‐induced switchable polarization characteristic of ferroelectric materials, suggesting the breaking ...
Fabia F. Athena   +10 more
wiley   +1 more source

High Power Density X-Band GaN-on-Si HEMTs with 10.2 W/mm Used by Low Parasitic Gold-Free Ohmic Contact. [PDF]

open access: yesMicromachines (Basel)
Du J   +12 more
europepmc   +1 more source

Direct Probing of Trap Dynamics in β‐Ga2O3 Schottky Barrier Diodes Using Single‐Voltage‐Pulse Characterization

open access: yesAdvanced Science, EarlyView.
A single‐pulse approach uncovers trap dynamics in β‐Ga2O3 Schottky barrier diodes. Transient current profiling reveals rapid electron capture, delayed trap filling, and clear thermal effects. Extracted trap densities, capture time constants, and activation energies indicate that this simple pulse technique enables effective evaluation of trap states ...
Thanh Huong Vo   +5 more
wiley   +1 more source

Wafer Scale III‐Nitride Deep‐Ultraviolet Vertical‐Cavity Surface‐Emitting Lasers Featuring Nanometer‐Class Control of Cavity Length

open access: yesAdvanced Science, EarlyView.
A DUV‐VCSEL strategy featuring the nanometer‐class control of the cavity length is proposed in the DUV optoelectronic framework based on GaN templates. After the sapphire removal, a self‐terminated etching technology is developed, whereby the cavity length can be accurately determined by epitaxy instead of the fabrication process. As such, a record low
Chen Ji   +18 more
wiley   +1 more source

Gallium Nitride for Space Photovoltaics: Properties, Synthesis Methods, Device Architectures and Emerging Market Perspectives. [PDF]

open access: yesMicromachines (Basel)
Drabczyk A   +9 more
europepmc   +1 more source

Emerging of Anomalous Higher‐Order Topological Phases in Altermagnet/Topological Insulator Heterostructure by Floquet Engineering

open access: yesAdvanced Science, EarlyView.
We combine altermagnet with topological insulators and subject the structure to Floquet driving. This breaks time‐reversal symmetry and creates a new type of higher‐order topological insulator. Its key feature is the emergence of programmable “0/π‐corner modes” that can be controlled by magnetic field direction, offering a novel dynamic platform for ...
Donghao Wang   +4 more
wiley   +1 more source

Wafer-scale uniform epitaxy of transferable 2D single crystals for gate-all-around nanosheet field effect transistors. [PDF]

open access: yesNat Commun
Xue C   +14 more
europepmc   +1 more source

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