Event
Â鶹AV Seminar: Ken Albrecht- Carbazole dendrimers as efficient thermally activated delayed fluorescence and luminescent radical materials
Thursday, May 30, 2024 13:00to14:00
Maass Chemistry Building
Ruttan Room, 801 rue Sherbrooke Ouest, Montreal, QC, H3A 0B8, CA
Abstract:
Carbazole dendrimers have a head-to-tail type molecular structure and unique polarized electronic structure with HOMO localized in the outer layer and LUMO localized in the inner layer. This electronic structure matches the design principle of thermally activated delayed fluorescence (TADF) materials. TADF materials are attracting attention as third-generation OLED materials and we have reported the first solution processable TADF dendrimer based on the carbazole dendrimer donor. TADF dendrimer can be utilized not only for OLEDs but also for LEC (light-emitting electrochemical cells) devices. We also found that carbazole dendrimerization is effective in improving the efficiency of doublet (radical) luminescent materials, which are fourth-generation OLED materials
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Bio:
Ken Albrecht received both B.Sc. (2006) and Ph.D. (2010) degrees from Keio University in Japan. He joined Toyo Institute of Technology in 2010 as an Assistant Professor and moved to his current position of Associate Professor at Kyushu University in 2019. He was tenured at Kyushu University in 2019 and held visiting appointments at the University of Houston (2010), Kyoto University (2019-2022), and the Technical University of Munich (2022). His group conducts research in the design and preparation of new organic (dendrimer) materials for organic electronics, luminescent materials, nanoparticle synthesis, and supramolecular chemistry. He is also working on organic active materials for Na-ion batteries, and development of electrostatic catalysis reactions.