Towards Implementation of Logic Circuits Based on Intrinsically Reconfigurable Organic Transistors

Organic electronics, ambipolarity, polymorphic electronics, multifunctional circuits, chip expander, organic transistor

Nowadays, electronic circuits based on wide range of organic materials with semiconductor properties are still perceived as a somewhat unconventional design approach and fabrication technology. However, it could potentially deliver many significant advantages. Materials for organic electronics are typically lighter, flexible, easier to handle and less expensive in comparison with traditional inorganic materials used in electronics (e.g. copper and silicon used for conventional CMOS process).

Previously reported research achievements in that particular domain also indicate that some of the organic semiconductor materials could be used for construction of organic field-effect transistors (OFET) that exhibit rather peculiar ability of ambipolar charge conduction. Fundamental electronic structures of such type also suggest the perspective of their utilization as the key building blocks for so called multifunctional logic elements or even more complex polymorphic circuits.

In this paper, main focus is given to the introduction of organic transistor devices with the ambipolar property that would allow to further increase the efficiency of multifunctional circuit design and synthesis techniques. Important aspect depicting the novelty of the proposed approach is primarily based on the adoption of hybrid combination of the traditional silicon substrate with the deposition of suitable organic semiconductor layer. In addition, custom chip carrier platform was also developed for this purpose. Finally, the paper is concluded with review of the achieved results and suggestion of further research directions.