[9p-C214-1~18] 12.4 Organic light-emitting devices, organic transistors, and flexible devices

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[9p-C214-7] Development of quaternary logic circuits based on parallel-type organic anti-ambipolar transistors

〇Taiga Kijima^1,2, Ryoma Hayakawa^1,2, Yutaka Wakayama¹ (1.NIMS, 2.Chuo Univ.)

Keywords:

Multivalued logic circuit,Anti-ambipolar transistor,Organic semiconductor

To enhance the performance of organic integrated circuits without relying on device miniaturization, we have focused on increasing information density by transitioning logic operations from conventional binary to multi-valued (quaternary) logic. However, achieving balanced output characteristics remains a challenge in conventional inverter structures. To address this, we developed a parallel circuit configuration that allows for the independent control of parameters such as individual source-drain voltages and channel widths to improve quaternary inverter characteristics. By connecting antiambipolar transistors (AATs) in parallel, we fabricated a Double Peak AAT (DAAT) that successfully exhibits two distinct negative differential transconductance (NDT) regions. In this presentation, we report the successful demonstration of quaternary inverter operation utilizing this DAAT architecture.