Results 131 to 140 of about 117,733 (307)

Transient Charging of Mixed Ionic‐Electronic Conductors by Anomalous Diffusion

Advanced Materials, EarlyView.
This article explores charge transport in mixed ionic‐electronic conductors (MIECs) through electrochemical impedance spectroscopy and transient current analysis. Focusing on PEDOT:PSS, WO3, and n‐doped PBDF, it uncovers the impact of anomalous diffusion via fractional modeling. The study reveals key correlations that deepen understanding and guide the
Heyi Zhang, Gonzalo Rivera‐Sierra, Shirin Siahjani‐Gultekin, Jenifer Rubio‐Magnieto, Anis Allagui, Ignacio Sanjuán, David Franco, Antonio Guerrero, Enrique H. Balaguera, Juan Bisquert   +9 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

Zero voltage zero current three level DC-DC converter

, 2000
A three-level DC-to-DC converter is provided having zero-voltage and zero-current switching (ZVZCS). A flying capacitor is provided on the primary side of the converter to achieve zero voltage switching (ZVS). In addition, during freewheeling (i.e., when

core  

Atomistic Mechanisms Triggered by Joule Heating Effects in Metallic Cu‐Bi Nanowires for Spintronics

Advanced Materials, EarlyView.
Bi doped metallic Cu nanowires are promising for spintronics thanks to the stabilization of a giant spin Hall effect. However, heat resulting from current injection forces Bi to leave solution, forcing segregation into monoatomic decorations which evolve into coherent crystalline aggregates.
Alejandra Guedeja‐Marrón, Juan Ignacio Beltrán, Matilde Saura‐Múzquiz, Paolo Perna, M. Carmen Muñoz, Lucas Pérez, Maria Varela   +6 more
wiley   +1 more source

Design Methodology of LLC Resonant Converter for PV-Powered Li-Ion Battery Charger

IEEE Access
Existing PV-powered Li-ion chargers used in electric vehicles and other standalone applications typically employ pulse-width modulated dc-dc converters for battery charging control.
Ahmed Y. Farag, Mohamed Rabah, Khaled A. El-Metwally, Abdelmomen Mahgoub   +3 more
doaj   +1 more source

A primary-side-assisted zero-voltage and zero-current switching DC-DC converter

, 2002
In this paper, a new primary-side-assisted zero-voltage and zero-current switching DC-DC converter with transformer isolation is proposed. The proposed DC-DC converter provides zero-current switching for the leading leg using a small auxiliary circuit ...
Jeon, S.-J., Cho, Gyu-Hyeong
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Ion‐Reconfigurable “N”‐Shaped Antiambipolar Behavior in Organic Electrochemical Transistors

Advanced Materials, EarlyView.
A unique N‐shaped negative differential transconductance (NDT) characteristics is demonstrated in single‐polymer organic electrochemical transistors through a sequential doping–redox–doping process driven by iodide ions. This redox‐driven mechanism enables low‐voltage, ion‐controlled reconfigurability and tunable current modulation, allowing seamless ...
Debdatta Panigrahi, Daniele Zucchelli, Zeinab Hamid, Christina Kousseff, Arup Sarkar, Aristea Pavlou, Zhitian Ling, Somayeh Kashani, Iain McCulloch, Paul W. M. Blom, Fabrizio Torricelli, Paschalis Gkoupidenis   +11 more
wiley   +1 more source

Zero-voltage and zero-current switching energy-recovery circuit for plasma display panel

, 2004
A new zero-voltage and zero-current switching (ZVZCS) energy-recovery circuit (ERC) for a plasma display panel (PDP) is proposed. Since its auxiliary circuit is composed of 2 diodes and only 2 power switches compared with 8 diodes and 4 power switches of
Choi, Seong-Wook, Han, Sang-Kyoo, Moon, GunWoo, Youn, Myung Joong   +3 more
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A New Family of Zero-Current-Switching Variable Frequency dc-dc Converters

, 2020
-A new family of zero-current-switching variablefrequency dc-dc converters is presented. It employs two unidirectional current switches, one diode, two small reactive components and a filter capacitor.
Giorgio Spiazzi, Paolo Mattavelli
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Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source