Results 111 to 120 of about 46,994 (285)

High‐Performance Phototransistor Based on a 2D Polybenzimidazole Polymer

open access: yesAdvanced Materials, EarlyView.
A crystalline 2D polybenzimidazole polymer (2DPBI), incorporating a porphyrin‐based π‐system linked via 1,3‐diazole units, is synthesized on the water surface over large areas. The 2DPBI thin‐film exhibits high charge carrier mobility (≈240 cm2 V−1 s−1, measured by terahertz spectroscopy), strong photoresponse, and band‐like transport, enabling ...
Anupam Prasoon   +20 more
wiley   +1 more source

Key distribution scheme of wireless sensor networks based on logic grid

open access: yesTongxin xuebao, 2009
Owed to the obvious characters of energy-constraint and dynamic topology, issues including confidentiality, integrality, authentication and no sufficient memory for abundance of key information, needed to be effectively solved in key management technique,
HUANG Hai-ping1, 2, WANG Ru-chuan1, 2
doaj   +2 more sources

Localized Spin Textures Stabilized by Geometry‐Induced Strain in 2D Magnet Fe3GeTe2

open access: yesAdvanced Materials, EarlyView.
Strain engineering in 2D van der Waals ferromagnet Fe₃GeTe₂ is studied using scanning transmission X‐ray microscopy. Spatially varying strain from micropillar arrays induced local 10 K Curie temperature increases, stabilizing magnetic domains including skyrmions and skyrmion bags near pillar corners.
Yuhan Sun   +13 more
wiley   +1 more source

Detachable and Reusable: Reinforced π‐Ion Film for Modular Synaptic Reservoir Computing

open access: yesAdvanced Materials, EarlyView.
This study presents a reinforced π‐ion film for organic electrochemical transistors (OECTs), addressing the rapid degradation of organic semiconductor layers. By introducing a mesh support and utilizing a scalable solvent exchange method, the π‐ion film enhances detachability and stability.
Gyu Won Woo   +8 more
wiley   +1 more source

Sub‐1000 °C Sintering of Protonic Ceramic Electrochemical Cells via Microwave‐Driven Vapor Phase Diffusion

open access: yesAdvanced Materials, EarlyView.
A transformative microwave‐driven vapor‐phase sintering strategy enables densification of proton‐conducting electrolytes at 980 °C, reducing the sintering temperature by over 500 °C and addressing a major bottleneck toward PCEC manufacturing. Abstract Protonic ceramic electrochemical cells (PCECs) hold significant promise for efficient power generation
Dongyeon Kim   +8 more
wiley   +1 more source

Dual Roles of Deep Eutectic Solvent in Polysulfide Redox and Catalysis for Intermediate‐Temperature Potassium‐Sulfur Batteries

open access: yesAdvanced Materials, EarlyView.
A dual‐functional NiS‐DES interfacial strategy enables highly reversible K2S2/K2S conversion in intermediate‐temperature K‐S batteries by balancing adsorption and activation of intermediates at the catalytic interface, achieving high capacity, long cycle life, and low‐cost energy storage. Abstract Potassium–sulfur (K‐S) batteries hold great promise for
Liying Tian   +9 more
wiley   +1 more source

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