Results 121 to 130 of about 322,683 (317)

Terahertz active spatial filtering through optically tunable hyperbolic metamaterials

, 2012
We theoretically consider infrared-driven hyperbolic metamaterials able to spatially filtering terahertz radiation. The metamaterial is a slab made of alternating semiconductor and dielectric layers whose homogenized uniaxial response, at terahertz ...
Alekseyev, Alessandro Ciattoni, Carlo Rizza, Chan, Chen, Ciattoni, Driscoll, Elisa Spinozzi, Elser, Jacob, Lorenzo Columbo, Padilla, Schurig, Shen, Smith, Spinozzi   +15 more
core   +1 more source

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

Advanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam, Pravin Karna, Niraj Bhatt, Sandip Thakur, Helge Heinrich, Daniel M. Hirt, Saman Zare, Christopher Jezewski, Rinus T.P. Lee, Kandabara Tapily, John T. Gaskins, Colin D. Landon, Sean W. King, Ashutosh Giri, Patrick E. Hopkins   +14 more
wiley   +1 more source

A first-principles density functional theory study on the piezocatalytic activity of tetragonal perovskite PbTiO3

Frontiers in Physics
Piezoelectric materials have been found to possess high catalytic activity under external mechanical excitations, such as ultrasonic waves or collisions.
Xinyi Sun, Xinyi Sun, Xinyi Sun, Xiangyu Zhu, Xiangyu Zhu, Xiangyu Zhu, Erjun Kan, Erjun Kan, Erjun Kan, Cheng Zhan, Cheng Zhan, Cheng Zhan   +11 more
doaj   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

Advanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han, Kevin Cheng, Swathy Sampath Kumar, Anil Bollimunta, Elizabeth E. Torr, Juhwan Kim, Kyoungmin Kim, Hyungjun Choi, Seongkwon Hwang, Sarah Brodnick, David Cheng, Lindsay Gray, Yei Hwan Jung, William L. Murphy, Aaron J. Suminski, Jonathan J. Nassi, Justin C. Williams, Dong‐Wook Park   +17 more
wiley   +1 more source

Improving mobility of silicon metal-oxide–semiconductor devices for quantum dots by high vacuum activation annealing [PDF]

, 2020
Ke Wang, Hai-Ou Li, Gang Luo, Xin Zhang, Fang‐Ming Jing, Rui-Zi Hu, Yuan Zhou, He Liu, Guilei Wang, Gang Cao, Hong-Wen Jiang, Guo‐Ping Guo   +11 more
openalex   +1 more source

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

Advanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya, Baliana Shani, Isaac Holmes‐Gentle, Gerardo T Martinez, Martyn McLachlan, Nicola Seriani, Ludmilla Steier   +6 more
wiley   +1 more source

Advances in Ovonic Threshold Switch Selector Technologies for Storage Class Memory: From Fundamentals to Development and Beyond

Advanced Electronic Materials
The explosive increase in the demand for data driven by advancements in artificial intelligence technology and rapid expansion of data centers necessitates storage class memory (SCM) capable of alleviating data traffic and workload issues. The success of
Sanghyun Ban, Jangseop Lee, Yoori Seo, Wootae Lee, Taehoon Kim, Hyunsang Hwang   +5 more
doaj   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source

Heuristic Model of Forecasting of Operating State of Semiconductor Devices

, 2022
V. O. Kaziuchyts, С. М. Боровиков, Е. Н. Шнейдеров   +2 more
openalex   +2 more sources