Results 51 to 60 of about 206 (188)

Physical and Numerical Modelling for Bipolar Charge Transport in Disorder Polyethylene Under High DC Voltage

International Journal on Electrical Engineering and Informatics, 2010
This paper reports on validation of a numerical model for both transient and steady bipolar charge transport, trapping and recombination in polymeric insulators, such as low density polyethylene. The numerical model is based on the high precision Runge-Kutta method for determining mobile and trapped charge local density within the sample, during the ...
I Boukhris, E Belgaroui, A Kallel
openaire   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

Advanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho, Seoyeon Park, Youngmin Lee, Sejoon Lee   +3 more
wiley   +1 more source

Research on interface charge behaviour and electrical threshold in layered epoxy/paper composites: From experiment to simulation

High Voltage
Layered epoxy/paper composites that exhibit excellent insulating characteristics under elevated electrification and temperature conditions are essential components for power system insulation.
Tianlei Xu, Xi Pang, Zongliang Xie, Peng Liu, Zongren Peng   +4 more
doaj   +1 more source

Three-Dimensional Modeling of Bipolar Charge-Carrier Transport and Recombination in Disordered Organic Semiconductor Devices at Low Voltages

Physical Review Applied, 2018
The electroluminescence from organic light-emitting diodes can be predicted with molecular-scale resolution using three-dimensional kinetic Monte Carlo (3D KMC) simulations [M. Mesta et al., Nat. Mater. 12, 652 (2013)]. However, around and below the built-in voltage KMC simulations are computationally inefficient.
Liu, Feilong, van Eersel, Harm, Bobbert, Peter A., Coehoorn, Reinder   +3 more
openaire   +2 more sources

New‐Era Polymer Thermoelectrics: Material Innovations, Doping Frontiers, Decoupling Strategies, and Unconventional Applications

Advanced Materials, EarlyView.
The field of polymer thermoelectrics is entering a new era, featuring breakthroughs in addressing the conventional performance disparity between p‐type and n‐type polymers, pioneering doping frontiers, and sophisticated decoupling strategies. This review explores innovations in molecular design and superior stabilities, bridging the gap from ...
Suhao Wang
wiley   +1 more source

Space Charge Modulated Electrical Breakdown of Oil Impregnated Paper Insulation Subjected to AC-DC Combined Voltages

Energies, 2018
Based on the existing acknowledgment that space charge modulates AC and DC breakdown of insulating materials, this investigation promotes the related investigation into the situations of more complex electrical stress, i.e., AC-DC combined voltages ...
Yuanwei Zhu, Shengtao Li, Daomin Min, Shijun Li, Huize Cui, George Chen   +5 more
doaj   +1 more source

Investigation of current density, recombination rate and space charge density in polyethylene thin films based on bipolar charge transport model

Materials Research Express, 2019
Bipolar charge transport model has been widely used to simulate the behavior of space charge. In order to reduce the splitting error three-order flux limiter is adopted to solve the advection-reaction equations. The simulation results are compared with experimental results and simulation results of Le Roy et al, validating the feasibility of the ...
Xinjing Cai, Xinxin Wang, Dan Pang, Xiaobing Zou, Jianli Yu, Zhiwei Lu   +5 more
openaire   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Lead Halide Perovskite Photoelectrocatalysis

Advanced Materials, EarlyView.
Lead halide perovskite semiconductors have emerged as highly promising materials for solar fuel and chemical synthesis. This perspective discusses advances made in the rational photoelectrode design to improve solar‐to‐chemical conversion, product scope, and scalability.
Virgil Andrei
wiley   +1 more source