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Controlling internal barrier in low loss BaTiO3 supercapacitors

Chan Chung, U. and Elissalde, Catherine and Mornet, Stéphane and Maglione, Mario and Estournès, Claude Controlling internal barrier in low loss BaTiO3 supercapacitors. (2009) Applied Physics Letters, vol. 94 . 072903-1. ISSN 0003-6951

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Official URL: http://dx.doi.org/10.1063/1.3076125

Abstract

Supercapacitor behavior has been reported in a number of oxides including reduced BaTiO3 ferroelectric ceramics. These so-called giant properties are however not easily controlled. We show here that the continuous coating of individual BaTiO3 grains by a silica shell in combination with spark plasma sintering is a way to process bulk composites having supercapacitor features with low dielectric losses and temperature stability. The silica shell acts both as an oxidation barrier during the processing and as a dielectric barrier in the final composite.

Item Type:Article
Additional Information:Thanks to American Institute of Physics editor. The definitive version is available at http://scitation.aip.org The original PDF of the article can be found at Applied Physics Letters website : http://apl.aip.org/apl/top.jsp
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Other partners > Ecole Nationale Supérieure de Chimie et de Physique de Bordeaux - ENSCPB (FRANCE)
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Other partners > Université de Bordeaux 1 (FRANCE)
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Deposited By: Celine Cabaup
Deposited On:19 Jun 2009 12:31

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