Results 111 to 120 of about 16,935 (310)

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

open access: yesAdvanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang   +7 more
wiley   +1 more source

Densification of Shock-Treated Aluminum Nitride and Aluminum Oxide

open access: yes, 1983
The structures of aluminum nitride and aluminum oxide powders have been modified by explosive shock treatment at pressures from 4 to 27 GPa. Shockinduced dislocations in AlN were apparently responsible for enhancement in hot pressing behavior.
E. K. Beauchamp   +2 more
core   +1 more source

A Universal Approach to Enhancing Silicon Hot‐Carrier Photodetectors for CMOS‐Compatible SWIR Imaging

open access: yesAdvanced Science, EarlyView.
Silicon hot‐carrier photodetectors offer a CMOS‐compatible pathway for SWIR detection but suffer from intrinsically low quantum efficiency. Here, we introduce a quasi‐generalized antireflection coating (QARC) that universally enhances optical absorption and quantum efficiency, enabling the first CMOS‐compatible SWIR imaging with silicon hot‐carrier ...
Eui‐Hyoun Ryu   +11 more
wiley   +1 more source

Integrated Electronics on Aluminum Nitride

open access: yes, 2022
399 pages ; The ultra-wide bandgap (UWBG) semiconductor aluminum nitride (AlN) has conventionally been used in optoelectronics, and as piezoelectric layers in radio-frequency (RF) micro electro-mechanical systems (MEMS). AlN, as an electronics platform, is now positioned as a strong candidate to meet the demands of next-generation high-frequency ...
openaire   +2 more sources

High Temperature Electrical Conductivity of Aluminum Nitride.

open access: yes, 1982
The total electrical conductivity of oxygen-doped and beryllium-doped aluminum nitride has been measured in the temperature range from 800(DEGREES)C to 1200(DEGREES)C in environmental nitrogen partial pressures from 10('-3) atmospheres to one atmosphere.
Richards, Von Lee, Ii
core  

Modification and Reactions of Aluminum Nitride Surfaces

open access: yes, 1990
The durability and oxidation behavior of polycrystalline aluminum nitride substrates have been investigated using scanning electron microscopy and x-ray diffraction.
Kevin L. Rugg   +5 more
core   +1 more source

V2CTx MXene as a Sacrificial Promoter for NiFe Catalyst for Anion Exchange Membrane Electrolyzers

open access: yesAdvanced Science, EarlyView.
These findings demonstrate that V2CTx functions beyond passive conductive support as an active electronic participant whose structural legacy sustains durable performance even after vanadium leaching in Anion Exchange Membrane (AEM) Electrolysers. ABSTRACT Nickel‐iron layered double hydroxides (NiFe‐LDH) show excellent activity, their poor conductivity
Bastian Schmiedecke   +12 more
wiley   +1 more source

Boron nitride nanotube reinforced aluminum nanocomposites

open access: yes, 2012
Boron nitride nanotube reinforced aluminum ...
S Seal (7655339)   +6 more
core  

Precursors for the Chemical Vator Deposition of Titanium Nitride and Titanium Aluminum Nitride Films

open access: yes, 1997
Titanium nitride and ternary alloys thereof are of significant interest due to their hardness, chemical resistance, and good electrical conductivity. We report the synthesis, structure, and properties of several new precursors to titanium nitride that ...
Charles H. Winter   +2 more
core   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

open access: yesAdvanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung   +7 more
wiley   +1 more source

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