Results 51 to 60 of about 3,382,432 (137)

Dynamics of space charge and electroluminescence modelling in polyethylene

open access: yes, 2012
Space charge has been recognized as an important factor contributing to the electrical failure of the cable insulation. Extensive efforts have been made to investigate space charge dynamics within polymeric insulations under electric stresses.
Zhao, Junwei
core   +1 more source

Edge mode percolation and equilibration in the topological insulator cadmium arsenide

open access: yesnpj Quantum Materials, 2023
Two-dimensional topological insulators can feature one-dimensional charge transport via edge modes, which offer a rich ground for studying exotic quasi-particles and for quantum materials applications.
Simon Munyan   +4 more
doaj   +1 more source

The Influence of Material Density on Bipolar Charge Transport in Polymer-Based Electronic Applications [PDF]

open access: yesMaterials Science Forum, 2006
Using a mesoscopic modelling approach, the authors performed computer experiments to study the influence of polymer density on bipolar charge evolution through thin layers of polydiacetylene (PDA) exhibiting specific microstructures. We found that the competition between charge transport, trapping and recombination within the polymer layer leads to ...
Ramos, Marta M. D.   +2 more
openaire   +1 more source

Charge Transport in LDPE Nanocomposites Part II—Computational Approach [PDF]

open access: yes, 2016
A bipolar charge transport model is employed to investigate the remarkable reduction in dc conductivity of low-density polyethylene (LDPE) based material filled with uncoated nanofillers (reported in the first part of this work).
Gubanski, Stanislaw   +9 more
core   +2 more sources

Charge transport mechanisms in corona charged polymeric materials

open access: yes, 2013
Polymeric materials have been widely used as an insulator due to their excellent electrical properties, light weight and low cost. Surface potential measurement is one of the simplest and low cost tools to gauge electrical properties of materials.
Zhuang, Yuan
core   +1 more source

Evaluation of Electric Field and Space Charge Dynamics in Dielectric under DC Voltage with Superimposed Switching Impulse

open access: yesEnergies, 2019
The influx of a switching impulse during DC steady-state operations causes severe electrical stress on the insulation of HVDC cables. Thus, the insulation should be designed to withstand a superimposed switching impulse.
Ik-Soo Kwon   +3 more
doaj   +1 more source

Discovery of an unknown conduction mechanism in insulating polymers

open access: yesHigh Voltage, 2020
Polymer dielectrics are widely used in electrical and electronic apparatus and devices because of their capability to insulate conductors, withstand high fields and suffer negligible conductive losses.
Gian Carlo Montanari   +3 more
doaj   +1 more source

Anomalous Phenomena in Solid Dielectrics under High Electric Fields (Keynote)

open access: yes, 2009
Solid dielectrics have been used extensively in electrical and electronic industries. In the power industry, ultra high voltage transmission and cost saving of power equipment often result in that the dielectrics are operating under high electric fields.
G Chen, Chen, George
core   +1 more source

Charge transport and excited states in organic semiconductors [PDF]

open access: yes, 2011
PhDOrganic semiconductors are of increasing technological interest in applications such as light emitting diodes, field effect transistors, and photovoltaic devices In order to reveal the basic principles behind these organic semiconductors, charge ...
Song, Jingyao
core   +2 more sources

A Modified Algorithm for the Simulation of Charge Behavior in Water Tree Aged Cross-Linked Polyethylene Cable

open access: yesIEEE Access, 2018
In this paper, a modified algorithm is introduced to explain the process of charge formation in water tree aged cable insulation with respect to the dielectric properties of water tree areas and the cylindrical geometries of cable insulation.
Yu Zhang   +3 more
doaj   +1 more source

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