PHOTOINDUCED ELECTRON-TRANSPORT PROCESS IN ELECTROCHEMICAL-CELL I - PHENOMENOLOGICAL DESCRIPTION

The process of electron transport plays an essential role in the funda mental phenomena of life like photosynthesis, respiration and vision a s well as in photoelectronic devices. However the molecular mechanisms of the electron way and factors governing the transport rate in such systems are still unclear. Several groups have reported theoretical ap proaches for searching the mechanisms by using statistical mechanics, coherent dynamics and quantum mechanics. The current density vector in side the semiconducting layer is determined. In this paper we consider the problem of transport of electron promoted in the electrochemical cell constructed of two electrodes with the dye molecules immersed in. We describe the process of electron promotion by refractive light wav e on the vacuum-semiconductor boundary as well as on the semiconductin g electrode and the dye molecule layer in terms of extended phenomenol ogical electrodynamics formalism. The results of our theoretical model show that such a theoretical approach will give more information on t he mechanism of electron transport and will give insight in the determ ination of some electric features of materials. (C) 1998 Elsevier Scie nce B.V. All rights reserved.