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Ink-jet printed carbon-based micro-supercapacitor for mobile self-powered modules

Published online by Cambridge University Press:  15 March 2011

Magali Brunet ,
Pierre-Louis Taberna ,
Patrice Simon ,
Norbert Fabre ,
Véronique Conédéra ,
Fabien Mesnilgrente ,
Hugo Durou  and
Carole Rossi
Magali Brunet
Affiliation:
LAAS-CNRS, Université de Toulouse, 7 av. du Colonel Roche, F-31077 Toulouse, France
Pierre-Louis Taberna
Affiliation:
CIRIMAT-CNRS, Université de Toulouse, 118 route de Narbonne, F-31062 Toulouse, France
Patrice Simon
Affiliation:
CIRIMAT-CNRS, Université de Toulouse, 118 route de Narbonne, F-31062 Toulouse, France
Norbert Fabre
Affiliation:
LAAS-CNRS, Université de Toulouse, 7 av. du Colonel Roche, F-31077 Toulouse, France
Véronique Conédéra
Affiliation:
LAAS-CNRS, Université de Toulouse, 7 av. du Colonel Roche, F-31077 Toulouse, France
Fabien Mesnilgrente
Affiliation:
LAAS-CNRS, Université de Toulouse, 7 av. du Colonel Roche, F-31077 Toulouse, France
Hugo Durou
Affiliation:
LAAS-CNRS, Université de Toulouse, 7 av. du Colonel Roche, F-31077 Toulouse, France
Carole Rossi
Affiliation:
LAAS-CNRS, Université de Toulouse, 7 av. du Colonel Roche, F-31077 Toulouse, France
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Abstract

Carbon-based micro-supercapacitors dedicated to energy storage in self-powered modules were fabricated with inkjet printing technology on silicon substrate. The ink containing activated carbon with particles size ranging from 1 μm to 10 μm, mixed with PTFE and glycol was stabilised with a surfactant, Triton X100. After functionalising the electrodes surroundings with octadecyltrichlorosilane (OTS), the ink was deposited by inkjet on the electrodes with the substrate heated at 140°C in order to assure a good homogeneity. The resulting structures have a resolution of 10 μm. Micro-supercapacitors with the carbon electrodes were tested in acetonitrile and Et4NBF4 dried salts: the capacitance density obtained was 50 μF.cm−2. The newly developed technology will allow the integration of the storage device as close as possible as the MEMS-based energy harvesting device, minimising power losses through connections.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1127: Symposium T – Mobile Energy , 2008 , 1127-T04-06
Copyright
Copyright © Materials Research Society 2009

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References

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