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Journal Articles EPL - Europhysics Letters Year : 2012

Calculation of local dielectric permittivity of confined liquids from spatial dipolar correlations

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Aziz Ghoufi
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Richard Renou
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  • PersonId : 946540
Minxia Ding
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  • PersonId : 944764

Abstract

We report the working expressions of calculation of local dielectric permittivity (epsilon(r)) under nanoconfinement from dipolar spatial correlations. Three confined geometries are investigated: planar, cylindrical and spherical interfaces. We apply these relations to the calculation of the local components of epsilon(r) of water confined in a porous silica framework. Microscopically we highlight that the dielectric profile is correlated to the density of water and hydrogen bonding network.
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Dates and versions

hal-00870061 , version 1 (04-10-2013)

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Aziz Ghoufi, Anthony Szymczyk, Richard Renou, Minxia Ding. Calculation of local dielectric permittivity of confined liquids from spatial dipolar correlations. EPL - Europhysics Letters, 2012, 99 (3), pp.37008. ⟨10.1209/0295-5075/99/37008⟩. ⟨hal-00870061⟩
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