Results 91 to 100 of about 293,183 (274)

Asymmetric Contact Engineering for Bottleneck‐Free Transport in 2D MoS2 Field‐Effect Transistor

Advanced Functional Materials, EarlyView.
Performance of 2D semiconductor transistors is limited by carrier transport bottlenecks arising from specific device geometries. By identifying this structural limitation, a bottleneck‐free asymmetric transistor architecture (BATA) is introduced to improve carrier transport.
Jinhyeok Pyo, Junsung Byeon, Jungmoon Lim, Sohyeon Park, Sungsan Kang, Byeongchan Kim, Gyuhwi Jeong, Haerim Kim, Bongjun Kim, SeungNam Cha, Sangyeon Pak   +10 more
wiley   +1 more source

Development of a Neutron Imaging Station at the n_TOF Facility of CERN and Applications to Beam Intercepting Devices

Instruments, 2019
A neutron radiography testing station has been developed exploiting the neutron beam of CERN’s n_TOF Experimental Area 2, located at the shortest distance to the neutron producing-target.
Federica Mingrone, Marco Calviani, Claudio Torregrosa Martin, Oliver Aberle, Michael Bacak, Enrico Chiaveri, Elvis Fornasiere, Antonio Perillo-Marcone, Vasilis Vlachoudis, the n_TOF Collaboration   +9 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Cost-effective aperture arrays for SKA Phase 1: single or dual-band?

, 2012
An important design decision for the first phase of the Square Kilometre Array is whether the low frequency component (SKA1-low) should be implemented as a single or dual-band aperture array; that is, using one or two antenna element designs to observe ...
Colegate, T. M., Gunst, A. W., Hall, P. J.   +2 more
core  

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

Advanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou, Hongzhi Liu, Shenglin Liu, Yuwei Liu, Mamiko Nakabayashi, Yunlong Xie, Naoya Shibata, Feng Gong, Jean‐Jacques Delaunay   +8 more
wiley   +1 more source

Very High Resolution Solar X-ray Imaging Using Diffractive Optics

, 2012
This paper describes the development of X-ray diffractive optics for imaging solar flares with better than 0.1 arcsec angular resolution. X-ray images with this resolution of the \geq10 MK plasma in solar active regions and solar flares would allow the ...
A. Y. Shih, A.H. Gabriel, B. R. Dennis, E. Fabrizio di, G. K. Skinner, G.K. Skinner, G.K. Skinner, G.K. Skinner, J. Krizmanic, J. Krizmanic, J.M. Davila, K.J.H. Phillips, K.J.H. Phillips, K.P. Dere, K.P. Dere, L. Golub, M. J. Li, M. Weber, M. Young, M.J. Aschwanden, P. Lamy, R.P. Lin, S. Vives, S.L. Keil, T.G. Farr   +24 more
core   +1 more source

Trap‐Assisted Transport and Neuromorphic Plasticity in Lead‐Free 2D Perovskites PEA2SnI4

Advanced Functional Materials, EarlyView.
An artificial retina built from lead‐free layered perovskite (PEA)2SnI4 converts light input into a persistent photocurrent and sums successive flashes over time. Micro/nanocrystals integrated on electrodes act as synapse‐like pixels that perform temporal integration directly in hardware. This in‐sensor preprocessing merges detection and computation on
Ofelia Durante, Valeria Demontis, Jonas Riisnaes Karl, Lam Hoi Tung, Sebastiano De Stefano, Daniela Marongiu, Adolfo Mazzotti, Aditya Bhardwaj, Francesco Mattana, Elisa Pili, Selene Matta, Federico Paolucci, Michele Saba, Andrea Mura, Giovanni Bongiovanni, Monica F Craciun, Saverio Russo, Antonio Di Bartolomeo   +17 more
wiley   +1 more source

3D Converted Wave Reverse Time Migration Imaging

Seismica
We describe a newly developed method for recovering high-resolution images of seismic discontinuities, such as subducting slabs, in 3D. Our method makes use of converted S→P or P→S waves observed by dense arrays of seismometers to infer the locations ...
Leah Langer, Christopher Henze, Fred F. Pollitz, Jeffrey J. McGuire   +3 more
doaj   +1 more source

Initial beam-profiling tests with the NML prototype station at the Fermilab A0 Photoinjector

, 2011
The beam-profile diagnostics station prototype for the superconducting rf electron linac being constructed at Fermilab at the New Muon Lab has been tested.
/Fermilab, Church, M., Flora, R., Johnson, A.S., Lumpkin, A., Ruan, J., Santucci, J., Scarpine, V., Sun, Y.-E., Thurman-Keup, R., Wendt, M.   +10 more
core   +1 more source

Intermediate Resistive State in Wafer‐Scale Vertical MoS2 Memristors Through Lateral Silver Filament Growth for Artificial Synapse Applications

Advanced Functional Materials, EarlyView.
In MOCVD MoS2 memristors, a current compliance‐regulated Ag filament mechanism is revealed. The filament ruptures spontaneously during volatile switching, while subsequent growth proceeds vertically through the MoS2 layers and then laterally along the van der Waals gaps during nonvolatile switching.
Yuan Fa, Milan Buttberg, Ke Ran, Rana Walied Ahmad, Dennis Braun, Lukas Völkel, Jimin Lee, Sofía Cruces, Bart Macco, Bárbara Canto, Holger Lerch, Thorsten Wahlbrink, Holger Kalisch, Michael Heuken, Andrei Vescan, Joachim Mayer, Zhenxing Wang, Ilia Valov, Stephan Menzel, Max C. Lemme   +19 more
wiley   +1 more source