Organic Semiconductor Physics and Engineering Lab

AboutAbout the lab

Investigating how electrons work inside devices.

The Organic Semiconductor Physics and Engineering Lab fabricates electronic devices using organic and inorganic semiconductors and studies what happens inside them.
It makes electronic devices such as solar cells, light-emitting devices (such as organic EL), and transistors, and investigates them by combining electrical conduction and optical measurements with electron spin resonance (ESR).
The lab works at the molecular and atomic level to control and improve device performance and to elucidate how devices operate and degrade.
On the lab's website, it is introduced under the name "Marumoto-Okamoto Lab."

ResearchResearch themes

The lab fabricates organic and inorganic electronic devices using conducting polymers, perovskites, transition metal chalcogenides, and other materials, and aims to elucidate how they operate. It combines microscopic measurements by ESR with macroscopic measurements such as conduction evaluation, and observes charge transfer and molecular orientation in the operando state, in which the device is actually operating.

*Illustrative image

Investigating charges inside solar cells↗

The lab builds perovskite solar cells and polymer solar cells in structures that can be measured by ESR, and directly observes the accumulation of charges during operation. By measuring ESR and device characteristics simultaneously, it elucidates the mechanisms of operation and degradation at the molecular level.

VoicesStudent voices

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