Issue |
Europhys. Lett.
Volume 50, Number 4, May II 2000
|
|
---|---|---|
Page(s) | 513 - 518 | |
Section | Condensed matter: structure, mechanical and thermal properties | |
DOI | https://doi.org/10.1209/epl/i2000-00299-3 | |
Published online | 01 September 2002 |
Mechanoelectric effects in ionic gels
1
Collège de France - 11 place M. Berthelot,
75231 Paris Cedex 05, France
2
School of Engineering and School of Medicine,
University of New Mexico
Albuquerque, NM 87131, USA
Corresponding author: pierre-gilles.degennes@espci.fr
Received:
30
September
1999
Accepted:
15
March
2000
Certain fluorinated ion-exchange membranes, when swollen and suitably plated
by conducting electrodes, display a spontaneous curvature increasing with
the applied electric field . There is also an inverse
effect, where an imposed curvature induces an electric field (in open
circuit conditions). We present here a compact description of these effects
in the linear regime, and in static conditions: this is based on linear
irreversible thermodynamics, with two driving forces ({E} and a water
pressure gradient
) and two fluxes (electric current and water
current). We also give some qualitative estimates of the three Onsager
coefficients which come into play.
PACS: 66.30.Qa – Electromigration / 85.30.De – Semiconductor-device characterization, design, and modeling
© EDP Sciences, 2000
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