Associate Professor Yamada et al. directly observe electron flow in organic transistors

(This article is a reprint of an original published on 06/21/2022)

Yoichi Yamada, Associate Professor, and Soichiro Takeiri, Associate Professor, in the Department of Pure and Applied Mathematics, University of Tsukuba, in collaboration with Keiki Fukumoto, Project Associate Professor, Institute for Materials Structure Science, High Energy Accelerator Research Organization (KEK), have successfully visualized the movement of conduction electrons in organic transistors under operating conditions using a femtosecond photoelectron microscope (femtosecond photoemission microscope), using a femtosecond pulse laser as an excitation source. The team succeeded in visualizing the movement of conduction electrons in organic transistors under operating conditions. Precise measurement of electrons in organic materials is still a very difficult task, and the development of this measurement technique will be useful for clarifying the physical properties of many organic electronics materials in the future.

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