Seminar & Colloquium
[콜로퀴엄: 3월 22일(수), 오후 5시] Prof. Chihaya Adachi, Kyushu University
Title
고성능 청색 발광을 목표로 하는 초형광 OLED (Hyperfluorescence OLEDs aimed at high-performance blue emission)
Speaker
Prof. Chihaya Adachi, Center for Organic Photonics and Electronics Research (OPERA), Kyushu University
Biography
Prof. Chihaya Adachi obtained his doctorate in Materials Science and Technology in 1991 from Kyushu University. He held positions as a research chemist and physicist in the Chemical Products R&D Center at Ricoh Co., a research associate at Shinshu University, a research staff at Princeton University, and an associate professor and professor at Chitose Institute of Science and Technology. In 2005, he returned to Kyushu University as a professor and was promoted to a distinguished professor in 2010, and his current posts also include director of Kyushu University’s Center for Organic Photonics and Electronics Research (OPERA) since 2010 and director of the Fukuoka i3 Center for Organic Photonics and Electronics Research since 2013. His research has been concentrated on organic synthesis, device fabrication, and optical and electrical device characterization of organic semiconductors. He has been serving as an editor of “Organic Electronics” (Elsevier) (2007-2019) and CCS Chemistry (2019-). His publications include over 670 research papers. He won Nishina Memorial Award (2017), Nagoya Silver Medal (2019), etc., and was selected as a highly cited researcher (Clarivate) (2018-2022).
| Date | Wednesday, March 22nd, 2023
| Time | 17:00 ~
| Venue | #201, Bldg. 43-1 (43-1동 201호)
온라인 줌 링크 (https://snu-ac-kr.zoom.us/j/7952699081)**
회의 ID: 795 269 9081
** 줌링크는 외부 교수님들과 코로나로 인해 들어오지 못하는 학생들을 위한 줌 주소입니다. 재료콜로퀴엄 수강생들은 대면으로 참석하셔야합니다.
[Abstract]
In the last 10 years, there have been a wide variety of studies on TADF-OLEDs because of the unlimited possibilities of TADF molecular design. Further, hyperfluorescence (HP)-OLEDs have been developed since they can realize the compatibility of high efficiency with narrow spectral width, which is ideal for practical display applications. We recently reported advanced HP-OLEDs, demonstrating high OLED performance by optimizing host, TADF, and terminal emitter (TE) molecules. In particular, we focused on the blue-emission, which is capable of showing narrow FWHM and high EL quantum yield. In this talk, we mention the comprehensive design principle for the materials used in HP-OLEDs by focusing on fast T-S upconversion, efficient FRET, GSP, and carrier trapping aimed at high-performance blue EL.
| Host | Prof. Woong-Ryeol Yu (880-9096)