Chihaya Adachi

Organic light emitting devices

-fundamentals and cutting edge high performance devices-

 

Chihaya Adachi

  aCenter for Organic Photonics and Electronics Research (OPERA), Kyushu University, Fukuoka 819-0395, Japan

adachi@cstf.kyushu-u.ac.jp

Professor Adachi obtained his doctorate in Materials Science and Technology in 1991 from Kyushu University. Before returning to Kyushu University as a professor of the Center for Future Chemistry and the Department of Applied Chemistry, he held positions at Ricoh Co., Shinshu University, Princeton University, and at Chitose Institute of Science and Technology. He became a distinguished professor at Kyushu University in 2010, and his current posts also include director of Kyushu University’s Center for Organic Photonics and Electronics Research (OPERA) since 2010.

 

ABSTRACT

The 30 years’ R&D in organic light emitting diodes (OLEDs) finally enabled nearly 100% internal electroluminescence efficiency using simple aromatic compounds possessing thermally activated delayed fluorescence (TADF) characteristics, indicating that OLED is promising technology in low-cost flexible display and lighting applications. In particular, the diversity of molecular design realized harvesting all electrically generated singlet and triplet excitons for light emission. In this tutorial session, the sophisticated molecular design for OLED and organic lasers will be reviewed by focusing on the excited-state engineering of organic emitters.

 

 

 

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