Effect of Molecular Fluctuation on Charge Transport Mechanism and Development of High-Mobility Organic Transistors

本文研究了分子波动对有机晶体管输运机制的影响。在n型和各种材料上成功地测量了霍尔效应。并进行了高压下的霍尔效应测量。在高压下，相邻分子之间的电子重叠增加，分子波动受到抑制，从而使电荷输运机制向清带输运靠拢。在高迁移率有机晶体管的开发方面，通过良好的合作研究，已经开发出高达16 cm2/Vs的高迁移率材料。材料的设计是基于这个研究得出的概念。这一结果证明了本研究提出的概念的有用性。最后，本研究成功开发了世界上最快的开关有机晶体管。

In this study, the influence of molecular fluctuation on the transport mechanism of organic transistors have been investigated. Hall effect measurements on n-type and various materials have been successfully measured. And Hall effect measurements under high pressure has been performed. Under high pressure, electronic overlap between adjacent molecules are increased and molecular fluctuation are suppressed, as a result, the mechanism of charge transport closed to clear band transport.As for the development of high-mobility organic transistors, high-mobility material as high as 16 cm2/Vs has been developed thorough good collaborating research. The materials are designed based on the concept which comes out from this study. This result demonstrate the usefulness of the concept developed by this study. And finally, world's fastest switching organic transistors have been successfully developed in this study.