Self-assembling /spl pi/-conjugated oligothiophenes for nanoelectronics: from organized molecular wires to macrocyclic circuits

Since conjugated oligomers and polymers can be considered as ´molecular wires´ and building blocks for ´molecular´ or ´nano-electronics´, we will describe their self-assembling behaviour which was investigated by means of scanning tunneling microscopy (STM). Furthermore, the self-assembling properties of novel macrocycles are reported. 2D- and 3D-structural characterizations provide intriguing self-organization properties.