Abstract
The present paper is concerned with the effect of the state of the surface on the rate of the electrochemical reaction injecting holes into anthracene. The state of the anthracene surface was examined by electron microscopy and by means of low energy electron pulses. A major part of the paper deals with the investigation of adsorption phenomena at the anthracene/electrolyte-solution interface. Two cases are considered. In the first case, the particles adsorbed on the surface merely shield it, without participating in the redox reaction injecting holes into anthracene. In the second case, the charge-carrier injection is determined by the rate of electrochemical transformation of particles adsorbed at the interface. The rate of this electrochemical reaction depends on surface coverage. Special consideration is given to the effect of the dielectric constant of the solvent on the rate of the electrochemical reaction.
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