An Experimental Investigation of High Field Ionic Conduction in Anodic Tantalum Pentoxide Films Using the Open‐Circuit Transient Method

1982 ◽  
Vol 129 (11) ◽  
pp. 2513-2518 ◽  
Author(s):  
D. J. Smith ◽  
L. Young
Keyword(s):  
Experimental Investigation ◽  
High Field ◽  
Ionic Conduction ◽  
Open Circuit ◽  
Tantalum Pentoxide ◽  
Transient Method

An experimentalist's view of the galvanomagnetic and thermomagnetic properties of potassium

1982 ◽  
Vol 60 (5) ◽  
pp. 679-686 ◽  
Author(s):  
R. Fletcher
Keyword(s):  
Experimental Investigation ◽  
Charge Density ◽  
Charge Density Wave ◽  
High Field ◽  
Density Wave ◽  
The Other ◽  
Detailed Structure ◽  
Precise Nature ◽  
A Charge ◽  
Thermomagnetic Properties

This paper provides a brief survey of the experimental and theoretical situation regarding the galvano- and thermomagnetic properties of potassium viewed within the context of the behaviour of other metals. Most of the data are consistent with various sample imperfections as being the major source of the anomalies that are found. However, the precise nature of the imperfections and the mechanism by which the imperfections produce the anomalies are not yet known. It is argued that the recently discovered detailed structure in the high field induced torque of K should be subjected to intensive experimental investigation before drawing any conclusions with regards to the possible presence of a charge density wave; the other magnetotransport properties offer little evidence either for or against such a possibility.

scholarly journals Remarkable Ionic Conductivity in a LZO-SDC Composite for Low-Temperature Solid Oxide Fuel Cells

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2277
Author(s):  
Zhengwen Tu ◽  
Yuanyuan Tian ◽  
Mingyang Liu ◽  
Bin Jin ◽  
Muhammad Akbar ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Ionic Conductivity ◽  
Low Temperature ◽  
Solid Oxide Fuel Cells ◽  
Ionic Conduction ◽  
Open Circuit ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Open Circuit Voltages ◽  
Composite Samples

Recently, appreciable ionic conduction has been frequently observed in multifunctional semiconductors, pointing out an unconventional way to develop electrolytes for solid oxide fuel cells (SOFCs). Among them, ZnO and Li-doped ZnO (LZO) have shown great potential. In this study, to further improve the electrolyte capability of LZO, a typical ionic conductor Sm0.2Ce0.8O1.9 (SDC) is introduced to form semiconductor-ionic composites with LZO. The designed LZO-SDC composites with various mass ratios are successfully demonstrated in SOFCs at low operating temperatures, exhibiting a peak power density of 713 mW cm−2 and high open circuit voltages (OCVs) of 1.04 V at 550 °C by the best-performing sample 5LZO-5SDC, which is superior to that of simplex LZO electrolyte SOFC. Our electrochemical and electrical analysis reveals that the composite samples have attained enhanced ionic conduction as compared to pure LZO and SDC, reaching a remarkable ionic conductivity of 0.16 S cm−1 at 550 °C, and shows hybrid H+/O2− conducting capability with predominant H+ conduction. Further investigation in terms of interface inspection manifests that oxygen vacancies are enriched at the hetero-interface between LZO and SDC, which gives rise to the high ionic conductivity of 5LZO-5SDC. Our study thus suggests the tremendous potentials of semiconductor ionic materials and indicates an effective way to develop fast ionic transport in electrolytes for low-temperature SOFCs.

High Field Ionic Conduction in Anodic Ta2 O 5 Formed in Oxalic and Phosphoric Electrolytes

1985 ◽  
Vol 132 (4) ◽  
pp. 976-978 ◽  
Author(s):  
I. Montero ◽  
J. M. Albella ◽  
J. M. Martínez‐Duart
Keyword(s):  
High Field ◽  
Ionic Conduction

The Improvement of Solar Cell Output Power Using Cooling and Reflection from Mirror

2017 ◽  
Vol 8 (3) ◽  
pp. 1320
Author(s):  
Budiyanto Budiyanto ◽  
Fadliondi Fadliondi
Keyword(s):  
Experimental Investigation ◽  
Solar Cell ◽  
Output Power ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Maximum Power ◽  
Light Reflection

This paper explains the experimental investigation to improve the output power of solar cell using cooling and light reflection from mirrors. The results show that by adding mirror, the current and output power of solar cell increase but the open circuit voltage and maximum power voltage decrease due to heat. By adding cooling, the open circuit voltage and the maximum power voltage are improved, so the output power also increases.

scholarly journals Reducing dielectric loss and enhancing electrical insulation for multilayer polymer films by nanoconfined ion transport under high poling electric fields

2020 ◽  
Vol 8 (18) ◽  
pp. 6102-6117 ◽  
Author(s):  
Xinyue Chen ◽  
Elshad Allahyarov ◽  
Deepak Langhe ◽  
Michael Ponting ◽  
Ruipeng Li ◽  
...  
Keyword(s):  
Electric Fields ◽  
Polymer Films ◽  
High Field ◽  
Ionic Conduction ◽  
Electric Energy ◽  
Electric Energy Storage ◽  
Conduction Loss ◽  
Impurity Ions ◽  
Energy Storage Applications ◽  
Dielectric Insulation

High-field electric poling locks impurity ions at interfaces in multilayer polymer films, which enhances dielectric insulation and reduces ionic conduction loss for electric energy storage applications.

Theory of Ionic Conduction in Solids Based on the Homogeneous Generation of Defect Pairs and Its Application to Anodic Oxidation

1971 ◽  
Vol 49 (3) ◽  
pp. 416-424 ◽  
Author(s):  
M. J. Dignam ◽  
D. F. Taylor
Keyword(s):  
Anodic Oxidation ◽  
High Field ◽  
Ionic Conduction ◽  
Three Dimensional ◽  
Alkali Halides ◽  
Mean Free Path ◽  
Homogeneous Field ◽  
Frenkel Defect ◽  
Valve Metals ◽  
Field Strengths

The theory for ionic conduction in solids based upon the homogeneous, field-assisted generation of defect pairs is developed in a general, three dimensional form, and its range of applicability is examined. At high field strengths the equations reduce to those of the so-called high field Frenkel defect theory, proposed originally by Bean, Fisher, and Vermilyea. At low field strengths, the steady-state expression reduces to the well-known conduction equation derived originally by Mott for ionic conduction in the alkali halides. At intermediate field strengths, more complicated relationships obtain. The homogeneous generation of defect pairs, whether field or current assisted, is shown to be inapplicable as a mechanism for the high field anodic oxidation of the valve metals, since either type of theory predicts unacceptable behavior for the mean free path of the mobile defects. Any such conduction mechanism can be acceptable only for the case of thick films (» 104 Å).

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