The studies of the organic conducting polymers started in the last of three decades. Electronic and electrical properties of polyAniline and poly (O-Tolidine) were examined intensively in recent years . The modelling/shaping of electrical, optical, and solar cells properties of conducting polymers that are necessary for a systematic development of future devices, represents the central part of this study. The conducting polymers and the applications of their electrical, optical, and especially electro-optical devices representing a field of application which is highly relevant today, as it utilized new materials properties not offered by their inorganic counterparts.