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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Autret, Cecile
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2019Comparison of colossal permittivity of CaCu3Ti4O12 with commercial grain boundary barrier layer capacitorcitations
- 2019Comparison of colossal permittivity of CaCu3Ti4O12 with commercial grain boundary barrier layer capacitorcitations
- 2018Control of grain boundary in alumina doped CCTO showing colossal permittivity by core-shell approachcitations
- 2018Control of grain boundary in alumina doped CCTO showing colossal permittivity by core-shell approachcitations
- 2017Laser fluence and spot size effect on compositional and structural properties of BiFeO 3 thin films grown by Pulsed Laser Depositioncitations
- 2016Local analysis of the grain and grain boundary contributions to the bulk dielectric properties of Ca(Cu 3−y Mg y )Ti 4 O 12 ceramics: Importance of the potential barrier at the grain boundarycitations
- 2015An Investigation of Na 1-X Li 2x Mn y Ni z O d Compounds for High Performance Sodium-Ion Batteries
- 2015An Electrochemical Study of Fe1.18Sb1.82 as Negative Electrode for Sodium Ion Batteriescitations
- 2015Capacitance Scaling of Grain Boundaries with Colossal Permittivity of CaCu3Ti4O12-Based Materialscitations
- 2015Capacitance Scaling of Grain Boundaries with Colossal Permittivity of CaCu3Ti4O12-Based Materialscitations
- 2015An Investigation of Na<sub>1-X</sub>Li<sub>2x </sub>Mn<sub>y</sub>Ni<sub>z</sub>O<sub>d</sub> Compounds for High Performance Sodium-Ion Batteries
- 2015Sintering of nanostructured Sc2O3 ceramics from sol-gel-derived nanoparticlescitations
- 2014Leading Role of Grain Boundaries in Colossal Permittivity of Doped and Undoped CCTOcitations
- 2014Leading Role of Grain Boundaries in Colossal Permittivity of Doped and Undoped CCTOcitations
- 2013Polypyrrole/lanthanum strontium manganite oxide nanocomposites: Elaboration and characterizationcitations
- 2013Polypyrrole/lanthanum strontium manganite oxide nanocomposites: Elaboration and characterizationcitations
- 2013Cu-Doping Effect on Dielectric Properties of Organic Gel Synthesized Ba4YMn3-xCuxO11.5±δcitations
- 2012Dielectric Properties of Hexagonal Perovskite Ceramics Prepared by Different Routescitations
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article
Comparison of colossal permittivity of CaCu3Ti4O12 with commercial grain boundary barrier layer capacitor
Abstract
The properties of a commercial grain boundary barrier layer (GBBL) SrTiO3-based capacitor are analyzed in terms of capacitance C and resistivity R of two RC elements, one for grains and one for grain boundaries. Results are compared with those of CaCu3Ti4O12 (CCTO) samples showing giant permittivity, measured in the same conditions and analyzed with the same method. All CCTO samples investigated here show higher permittivity than GBBL. This is shown to be related to a higher capacitance of the grain boundaries. However, the electric losses of CCTO measured via conventional tan(δ) are found significantly higher. They are related to a resistivity of the grain boundaries lower than in GBBL capacitor. A better control of the grain boundaries in CCTO possibly via a core-shell synthesis described here, followed by thermal post treatments under a controlled atmosphere as it is performed for GBBL capacitors, is suggested to improve the resistance of CCTO dielectrics.