ion migration

ion migration

[′ī‚än mī′grā·shən]
(electricity)
Movement of ions produced in an electrolyte, semiconductor, and so on, by the application of an electric potential between electrodes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
This leads to the inhibition of ion migration during the corrosion process then give a more durable glass.
Ion migration plays a critical role in cadmium telluride (CdTe) and copper indium gallium diselenide (CIGS) based thin film photovoltaic device performance.
This leads to an increase of the activation energy for ion migration.
For deeper understanding of the resistive switching mechanism in these materials, it is important to know the parameters of the oxygen ion transport, such as the activation energies for the oxygen ion migration, the mobile ion concentration, and mobility.
Previously, studies have shown that for maximizing reliability in IC design and PCB fabrication, width scaling of Cu lines must be investigated by EM phenomena where to reduce failures by corrosion environments, two scenarios have been recommended with respect to the mechanisms governing the Cu ion migration with the suggested spacing between IC components satisfying a width < 1 [micro]m, whereas a width > 1 [micro]m is for components on PCBs [6, 8].
So, the selection of the material liquid pH plays an important role in metal ion migration.
More importantly, the open-framework chalcogenides with characteristics of three dimensional (3D) ion migration channels, high porosity, and high anionic framework polarizability have long been recognized as potential fast-ion conductors, which can be used as electrodes or electrolytes in secondary batteries [19].
The ion migration across the membrane during subthreshold activity also serves to neutralize the external stimulus charge injected into the cell.
Recently, several Metal-Insulator-Metal structures have shown the ability to switch between these two resistive states (HRS [less than or equal to] LRS) after promoting resistive switching phenomena (by forming/dissolving conductive filamentary paths in mostly binary oxides) or ion migration mechanisms (by cation or anion species in solid electrolytes) during high electrical stress of the devices [1, 2].
Moreover, ion size can be an important factor influencing ion migration rates to surface [18].
* A high resistance to ion migration at the terminals.
Consequently, this favours [Li.sup.+] ion migration. The mechanism of conductivity enhancement in SPE due to ceramic additives remains uncertain until present, although several models have been discovered [21].