The 70th JSAP Spring Meeting 2023

Presentation information

Oral presentation

12 Organic Molecules and Bioelectronics » 12.2 Characterization and Materials Physics

[15a-B508-1~9] 12.2 Characterization and Materials Physics

Wed. Mar 15, 2023 9:15 AM - 11:45 AM B508 (Building No. 2)

Satoshi Kera(IMS), Koji Okudaira(Chiba Univ.)

11:30 AM - 11:45 AM

[15a-B508-9] Evaluation of Carrier Transport in Organic Antiambipolar Transistors by Operando Photoelectron Emission Microscopy

〇(M1)Konoha Shimizu1,2, Soichiro Takeiri1,2, Ryoma Hayakawa1, Yoichi Yamada2, Yutaka Wakayama1, Keiki Fukumoto3 (1.NIMS, 2.Univ. Tsukuba, 3.KEK)

Keywords:organic antiambipolar transistors, operando photoelectron emission microscopy, carrier transport mechanism

Antiambipolar transistors (AATs) have recently received much attention because of the unique
conduction properties similar to negative resistance. We have proposed organic AATs because organic semiconductors have the attractive features including mechanical flexibility and high
controllability of the energy levels by chemical engineering. We have evaluated the electron
conduction mechanism of the organic AATs using photoemission electron microscopy (PEEM). In this study, we further unveiled the hole conduction mechanism by operando PEEM measurements, owing to the adoption of C8-BTBT as the p-type transistor channel.