Recent trends on the electrical properties of organic thin films are reviewed concerning the new development of functional molecules and the expansion of the fabrication for insulators, conductors, and their composites. They include evaporated films, electrically polymerized films, and Langmuir-Blodgett films. The orientation control by liquid crystal and epitaxyal growth were profitable for realizing the highly ordered structure of polymers for the improvement of conductivity. A variety of electrical devices are proposed, using conducting polymers for switches, memories, displays, and sensors. Thermal stable Langmuir-Blodgett films without long alkyl chains are fabricated.
