Results 61 to 70 of about 34,551 (258)

The Logics of Materials Innovation The Case of Gallium Nitride and Blue Light Emitting Diodes [PDF]

, 2012
International audienceThis article examines the rise of gallium nitride as a major semiconductor material at the center of a new industry, solid-state lighting.
Lécuyer, Christophe, Ueyama, Takahiro
core   +4 more sources

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

GaN Nanopowder synthesis via nitridation: Fabrication and characterization of GaN thin Films for UV detection applications

Sensors International
This study presents a novel method for synthesizing gallium nitride nanoparticles via nitridation and their subsequent deposition onto silicon substrates using electron beam evaporation for UV detection applications. The structural and optical properties
Mahdi Hajimazdarani, Peyman Yaghoubizadeh, Ali Jafari, Ali Kenarsari Moghadam, Mojtaba Hajimazdarani, Mohammad Javad Eshraghi   +5 more
doaj   +1 more source

Bright Room-Temperature Single Photon Emission from Defects in Gallium Nitride

, 2016
Single photon emitters play a central role in many photonic quantum technologies. A promising class of single photon emitters consists of atomic color centers in wide-bandgap crystals, such as diamond silicon carbide and hexagonal boron nitride. However,
Aharonovich, Igor, Berhane, Amanuel M., Bodrog, Zoltán, Englund, Dirk R., Fiedler, Saskia, Gali, Adam, Jeong, Kwang-Yong, Palacios, Tomas, Schroder, Tim, Schröder, Tim, Toth, Milos, Vico Trivino, Noelia   +11 more
core   +1 more source

Porosity Engineering of MXene Architectures: Toward High‐Performance Aqueous Electrochemical Energy Storage

Advanced Materials, EarlyView.
This review systematically summarizes recent advances in porosity engineering of MXenes, with a focused discussion on their structure‐governed energy storage properties. A critical analysis of structure–property relationships is presented across alkali‐ion batteries, multivalent‐ion batteries, and supercapacitors.
Shude Liu, Jieming Chen, Xue Peng, Huilin Zhang, Ling Kang, Ming Ma, Zhaoling Li, Yusuke Yamauchi, Bin Ding   +8 more
wiley   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Fitting the refractive indices of GaN at different conditions with MATLAB codes for optical simulations

Scientific Reports
This mixed study presents the optical properties of gallium nitride material at different conditions and thicknesses over a very wide wavelength range for optical simulations.
Zaky A. Zaky, M. Al-Dossari, Ahmed S. Hendy, Mohammed Sallah, Arafa H. Aly   +4 more
doaj   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Gallium Nitride High-Electron-Mobility Transistor-Based High-Energy Particle-Detection Preamplifier

Metrology
GaN High-Electron-Mobility Transistors have gained some foothold in the power-electronics industry. This is due to wide frequency bandwidth and power handling. Gallium Nitride offers a wide bandgap and higher critical field strength compared to most wide-
Gilad Orr, Moshe Azoulay, Gady Golan, Arnold Burger   +3 more
doaj   +1 more source

Dispersion force for materials relevant for micro and nanodevices fabrication

, 2008
The dispersion (van der Waals and Casimir) force between two semi-spaces are calculated using the Lifshitz theory for different materials relevant for micro and nanodevices fabrication, namely, gold, silicon, gallium arsenide, diamond and two types of ...
, , A Gusso, Adachi S, Buks E, Butt H J, Davis Z J Boisen A, Dequesnes M, Filatova E, G J Delben, Hunter R J, Israelachvili J N, Lifshitz E M, Milonni P W, Modreanu M Gartner M Tomozeiu N Cobianu C Cosmin P Gavrila R, Mostepanenko V M, Müllejans H, Palik E D, Peiner E, Pirozhenko I, Trisnadi J I Carlisle C B Monteverde R   +20 more
core   +1 more source