Results 41 to 50 of about 127,201 (278)

Bismuth‐Based Photocatalysts for Water Remediation: Design Strategies, Mechanisms, and Challenges

Advanced Functional Materials, EarlyView.
This review highlights representative design strategies for bismuth‐based semiconductor photocatalysts in solar‐driven water purification. Emphasis is placed on electronic structure regulation, oxygen‐vacancy engineering, and interfacial coupling to enable efficient full‐spectrum light utilization, improved charge separation, and selective oxidation in
Shan Liu, Yi Zhao, Liming Cai, Simin Long, Jing Kang, Jingkai Lin, Jimin Shen, Zhonglin Chen, Shaobin Wang, Huayang Zhang   +9 more
wiley   +1 more source

Modular wave digital approach: methodology review and application on Wilkinson-type power dividers

Cogent Engineering
Wave digital (WD) filter theory represents a powerful approach for modeling various physical systems. The WD framework, based on this theory, offers the ability to create digital models of planar microstrip circuits.
Biljana P. Stošić, Marin Nedelchev, Zlatica Marinković   +2 more
doaj   +1 more source

Characterizing Niobium Nitride-Based Superconducting Coplanar Waveguide Resonators for Microwave Hybrid Circuit Quantum Electrodynamics

IEEE transactions on applied superconductivity
The high critical magnetic field and relatively high critical temperature of niobium nitride (NbN) make it a promising material for applications in superconducting quantum technology.
Paniz Foshat, Paul G. Baity, S. Danilin, Valentino Seferai, Shima Poorgholam-Khanjari, Hua Feng, Oleg A. Mukhanov, M. Hutchings, Robert H. Hadfield, Martin Weides, K. Delfanazari   +10 more
semanticscholar   +1 more source

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

Design and Testing of a Low-Tech DEW Generator for Determining Electromagnetic Immunity of Standard Electronic Circuits

Energies, 2021
This article describes the effect of high-power electromagnetic environments (HPEMs) on the operation of all basic elements of electrical power networks. Frequency bands are defined for the HPEM environments. Attention is focused particularly on directed
Libor Dražan, René Križan, Miroslav Popela   +2 more
doaj   +1 more source

Integrated Microwave Photonics Coherent Processor for Massive-MIMO Systems in Wireless Communications

IEEE Journal of Selected Topics in Quantum Electronics, 2023
Massive-MIMO systems can achieve high capacities and data rates by increasing the number of operational antennas in the base station. As more antenna elements are introduced, the complexity of the signal processing operations increases accordingly and ...
Pablo Martínez-Carrasco Romero, José Roberto Rausell-Campo, D. Pérez-Galacho, Xu Li, Ting Qing, Tiangxiang Wang, D. Pérez-López   +6 more
semanticscholar   +1 more source

Single‐Chromophore Homojunction Organic Solar Cells: A Path to Simplicity and Efficiency

Advanced Materials, EarlyView.
This perspective discusses how the intrinsic optoelectronic properties of organic semiconductors, their molecular packing in the solid‐state, and internal energetic gradients within a device can enable free‐charge carrier generation in homojunction organic solar cells.
Shaun McAnally, Paul L. Burn, Paul E. Shaw   +2 more
wiley   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

Advanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis, Filip Aniés, Yiyang Yu, Mohammed Ghadiyali, Hendrik Faber, Zhanibek Bizak, Youssef Kabri, Pavlos Tzourmpakis, Suman Mandal, Linqu Luo, Temur Maksudov, Mohamad Insan Nugraha, Harold F. Mazo‐Mantilla, Patrice Vanelle, Julie Broggi, Khaled N. Salama, Udo Schwingenschlögl, Martin Heeney, Atif Shamim, Thomas D. Anthopoulos   +19 more
wiley   +1 more source

Mechanism of AlGaAs/InGaAs pHEMT Nonlinear Response Under High-Power Microwave Radiation

IEEE Journal of the Electron Devices Society, 2020
With the development of microelectronic technology, the reliability of devices in a complex electromagnetic environment has become one of the greatest challenges in the semiconductor industry.
Yu-Qian Liu, Chang-Chun Chai, Han Wu, Yu-Hang Zhang, Chun-Lei Shi, Yin-Tang Yang   +5 more
doaj   +1 more source