Abstract

A theory of electron tunneling through a small metal nanoparticle (NP) which is governed both by the charging effect and the effect of the solvent reorganization on the tunnel current is presented. The exact expression for the rate constant of electron transfer from an electrode to NP which is valid for all values of the reorganization Gibbs energy E r, bias voltage and overpotential is obtained in the non-adiabatic limit. The tunnel current/overpotential relations are studied for different values of the bias voltage and E r.

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