Results 161 to 170 of about 40,433 (286)

Broadband Achromatic Programmable Electromagnetic Camouflage via Fluidic‐Accessible Metasurface

Advanced Science, EarlyView.
A fluidic access metasurface enables dynamic, broadband electromagnetic illusions. By physically reconstructing conductive patterns with liquid metal, the metasurface achieves real‐time, pixel‐level control over phase dispersion. This allows for the programmable generation of arbitrary strong scattering point arrays, effectively deceiving high ...
Shipeng Liu, Jiahao Zhang, Jiale Wang, Zeyao Chen, Zhaotong Yu, Jinhong Luo, Jiabao Luo, Rujia Cao, Shuxi Gong, Qingxin Guo, Ping Li, Rujiang Li, Ke Chen, Yongtao Jia, Ying Liu   +14 more
wiley   +1 more source

Non‐Uniform Space‐Time‐Coding Modulation for Low‐Complexity Diagnostics of Reconfigurable Intelligent Surfaces

Advanced Electronic Materials, EarlyView.
A diagnostic method for reconfigurable intelligent surfaces (RIS) based on non‐uniform space‐time‐coding modulation is presented. Fault localization is achieved via amplitude‐only spectral measurements, eliminating the need for complex signal processing. A one‐to‐one mapping between harmonic components and RIS elements enables accurate detection.
Xiao Qing Chen, Lei Zhang, Yi Ning Zheng, Bing Bing Zhu, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Vincenzo Galdi, Tie Jun Cui   +8 more
wiley   +1 more source

A General and Efficient Framework for the Rapid Design of Miniaturized, Wideband, and High‐Bit RIS

Advanced Electronic Materials, EarlyView.
A general and efficient framework is proposed for the rapid design of high‐performance reconfigurable intelligent surfaces (RISs). This framework integrates advanced antenna design techniques and incorporates various load types, quantities, and values to achieve the design of high‐performance RISs.
Jun Wei Zhang, Zheng Xing Wang, Wanwan Cao, Zhen Jie Qi, Li Jie Wu, Han Qing Yang, Qun Yan Zhou, Si Ran Wang, Hui Dong Li, Jun Yan Dai, Jiang Luo, Jun Wei Wu, Jia Nan Zhang, Zhen Zhang, Qiang Cheng   +14 more
wiley   +1 more source

Conformal Reconfigurable Intelligent Surfaces: A Cylindrical Geometry Perspective

Advanced Electronic Materials, EarlyView.
Cylindrical reconfigurable intelligent surfaces are explored for low‐complexity beam steering using one‐bit meta‐atoms. A multi‐level modeling approach, including optimization‐based synthesis, demonstrates that even minimal hardware can support directive scattering.
Filippo Pepe, Ivan Iudice, Giuseppe Castaldi, Marco Di Renzo, Vincenzo Galdi   +4 more
wiley   +1 more source

High‐Speed Flexible Schottky Diodes Based on Carbon Nanotubes

Advanced Electronic Materials, EarlyView.
We demonstrate a flexible Schottky diode based on carbon nanotube network thin film, and the devices are fabricated via a low‐temperature process on a PI substrate, which exhibits excellent radio‐frequency characteristics, with a high responsivity 6 A/W at zero bias, a high intrinsic cut‐off frequency reaching 153 GHz, and an extrinsic cut‐off ...
Yan Li, Haoyu Zhang, Xinyi Zheng, Weifeng Wu, Xiaowei He, Li Ding, Sheng Wang   +6 more
wiley   +1 more source

Device Performance of Emerging Photovoltaic Materials (Version 6)

Advanced Energy Materials, EarlyView.
Efficiency of single junction perovskite (circles), organic (hexagons), dye sensitized (pentagons), kesterite (diamonds), Sb2Se3 (right triangle), and AgBiS2 (left triangles) solar cells at emerging‐pv.org over the last decade. ABSTRACT This 6th annual Emerging PV Report surveys peer‐reviewed advances since August 2024 across perovskite, organic ...
Osbel Almora, Agustin O. Alvarez, Derya Baran, Carlos I. Cabrera, Luigi A. Castriotta, Bruno Ehrler, Sule Erten‐Ela, Kenjiro Fukuda, Fei Guo, Jens Hauch, Anita W.Y. Ho‐Baillie, T. Jesper Jacobsson, Rene A. J. Janssen, Thomas Kirchartz, Maria A. Loi, Richard R. Lunt, Xavier Mathew, Jie Min, David B. Mitzi, Mohammad K. Nazeeruddin, Ana F. Nogueira, Ulrich W. Paetzold, Nam‐Gyu Park, Barry P. Rand, Henry Snaith, Takao Someya, Christian Sprau, Lulu Sun, Karen Forberich, Christoph J. Brabec   +29 more
wiley   +1 more source

Quantification of Gaseous Products Evolved at Industrially Relevant Current Densities During CO2 Electroreduction and Water Electrolysis Using Online Gas Chromatography

Advanced Energy and Sustainability Research, EarlyView.
The dilution of gaseous products obtained at high‐current densities during CO2 electroreduction or water electrolysis enables their accurate quantification via online gas chromatography, which is crucial for reliable catalyst benchmarking. The corresponding Faradaic efficiencies can then be calculated with low deviations using two different instruments,
Raíssa Ribeiro Lima Machado, Bright Nsolebna Jaato, Torsten Claus Schmidt, Ignacio Sanjuán, Corina Andronescu   +4 more
wiley   +1 more source

Designing Memristive Materials for Artificial Dynamic Intelligence

Advanced Intelligent Discovery, EarlyView.
Key characteristics required of memristors for realizing next‐generation computing, along with modeling approaches employed to analyze their underlying mechanisms. These modeling techniques span from the atomic scale to the array scale and cover temporal scales ranging from picoseconds to microseconds. Hardware architectures inspired by neural networks
Youngmin Kim, Ho Won Jang
wiley   +1 more source

Smart antenna with reconfigurable polarization for future generation of mm-wave communication. [PDF]

Sci Rep
Mohamed MA, Ateya AA, Hussein KFA, Farahat AE, El-Deeb WS.   +4 more
europepmc   +1 more source

Diode PiN 6500V en SiC-4H

, 2012
Des diodes PiN 6500V en SiC ont été réalisées chez IBS. Huit étapes de photolithographie sont nécessaires pour la fabrication de tels composants. La protection périphérique est de type Mesa-JTE. La tenue en tension maximale obtenue est de 6 000V indépendamment des surfaces (2, 8 et 24 mm2). Les courants de fuite sont inférieurs à 10 μA.
Brosselard, Pierre, Huang, Runhua, Nguyen, Duy, Planson, Dominique, Dupuy, Lionel, Grosset, Grégory, Vergne, Bertrand, Scharnholz, Sigo   +7 more
openaire   +1 more source