Kyushu University Academic Staff Educational and Research Activities Database
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Albrecht Ken Last modified date:2023.10.13

Graduate School

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 Reseacher Profiling Tool Kyushu University Pure
Academic Degree
Doctor of Science
Country of degree conferring institution (Overseas)
Field of Specialization
Organic Electronics, Polymer Chemistry, Dendrimer, Materials Chemistry, Supramolecular Chemistry
ORCID(Open Researcher and Contributor ID)
Research Interests
  • Organic cathode materials for secondary-batteries
    keyword : Cathode material, Secondary Battery
  • Solution-processable thermally-activated delayed-fluorescence material
    keyword : Organic electroluminescence, Thermally-activated delayed fluorescence
  • Development of new electrostatic catalysis reaction
    keyword : Electrostatic catalysis
Academic Activities
1. Kazuhiro Nakamura, Kenshiro Matsuda, Rui Xiaotian, Minori Furukori, Satoshi Miyata, Takuya Hosokai, Kosuke Anraku, Kohei Nakao, Ken Albrecht, Effects of halogen atom substitution on luminescent radical: A case study on tris(2,4,6-trichlorophenyl)methyl radical-carbazole dyad, Faraday Discussions, 10.1039/D3FD00130J, 2023.09.
2. Hiroki Ikebe, Kohei Nakao, Eri Hisamura, Minori Furukori, Yasuo Nakayama, Takuya Hosokai, Minlang Yang, Guanting Liu, Takuma Yasuda, Ken Albrecht, Thermally Activated Delayed Fluorescence Carbazole-Triazine Dendrimer with Bulky Substituents, Aggregate, 10.1002/agt2.405, 2023.08.
3. Luca M. Cavinato, Keiko Yamaoka, Sophia Lipinski, Vladimir Calvi, Dominique Wehenkel, Richard van Rijn, Ken Albrecht*, Rubén D. Costa, Dendri-LEC Family: Establishing the Bright Future for Dendrimer Emitters in Traditional and Graphene-Based Light-Emitting Electrochemical Cells, Advanced Functional Materials, 10.1002/adfm.202302483, 2023.06.
4. Rui Xiaotian, Wataru Ota, Tohru Sato, Minori Furukori, Yasuo Nakayama, Takuya Hosokai, Eri Hisamura, Kazuhiro Nakamura, Kenshiro Matsuda, Kohei Nakao, Andrew P. Monkman, Ken Albrecht, Carbazole-Dendronized Luminescent Radicals, Angewandte Chemie International Edition, 10.1002/anie.202302550, 2023.03, A series of carbazole-dendronized tris(2,4,6-trichlorophenyl)methyl (TTM) radicals have been synthesized. The photophysical properties of dendronized radicals up to the fourth generation were compared systematically to understand how structure–property relationships evolve with generation. The photoluminescence quantum yield (PLQY) was found to increase with the increasing generation, and the fourth generation (G4TTM) in cyclohexane solution showed a PLQY as high as 63 % at a wavelength of 627 nm (in the deep-red region) from the doublet state. The dendron modification strategy also showed a blue-shift of the emission on increasing the generation number, and the photostability was also increased compared to the bare TTM radical..
5. Kenshiro Matsuda, Xiaotian Rui, Kazuhiro Nakamura, Minori Furukori, Takuya Hosokai, Kosuke Anraku, Kohei Nakao, Ken Albrecht, Photostability of luminescent tris(2,4,6‐trichlorophenyl)methyl radical enhanced by terminal modification of carbazole donor, Chemical Communications, 10.1039/D2CC04481A, 2022.11.
6. Jun WATANABE, Masaki FURUSAWA, Kosuke NAKAMOTO, Yuchao SUN, Masatoshi TASHIMA, Keiko YAMAOKA, Seiko FUJIWARA, Han Seul KIM, Shigeto OKADA, Ken ALBRECHT , 3,6-Diphenyltetrazine as Cathode Active Material for Sodium Ion Batteries, Electrochemistry, 10.5796/electrochemistry.22-00100, 2022.11.
7. Ken Albrecht, Eri Hisamura, Minori Furukori, Yasuo Nakayama, Takuya Hosokai, Kohei Nakao, Hiroki Ikebe, Akira Nakayama, Thermally activated delayed fluorescence of carbazole-benzophenone dendrimers with bulky substituents, POLYMER CHEMISTRY, 10.1039/d2py00255h, 13, 16, 2277-2284, 2022.02.
8. Ken Albrecht, Maki Taguchi, Takamasa Tsukamoto, Tatsuya Moriai, Nozomi Yoshidaa, Kimihisa Yamamoto, Poly-phenylene jacketed tailor-made dendritic phenylazomethine ligand for nanoparticle synthesis, CHEMICAL SCIENCE, 10.1039/d1sc05661a, 13, 20, 5813-5817, 2022.03, Synthesizing metal clusters with a specific number of atoms on a preparative scale for studying advanced properties is still a challenge. The dendrimer templated method is powerful for synthesizing size or atomicity controlled nanoparticles. However, not all atomicity is accessible with conventional dendrimers. A new tailor-made phenylazomethine dendrimer (DPA) with a limited number of coordination sites (n = 16) and a non-coordinating large poly-phenylene shell was designed to tackle this problem. The asymmetric dendron and adamantane core four substituted dendrimer (PPDPA16) were successfully synthesized. The coordination behavior confirmed the accumulation of 16 metal Lewis acids (RhCl3, RuCl3, and SnBr2) to PPDPA16. After the reduction of the complex, low valent metal nanoparticles with controlled size were obtained. The tailor-made dendrimer is a promising approach to synthesize a variety of metal clusters with desired atomicity..
9. Kenji Takada, Mari Morita,Takane Imaoka, Junko Kakinuma, Ken Albrecht, Kimihisa Yamamoto, Metal atom–guided conformational analysis of single polynuclear coordination molecules, Science Advances, 10.1126/sciadv.abd9887, 7, 32, eabd9887, 2021.08.
Membership in Academic Society
  • The Society of Synthetic Organic Chemistry, Japan
  • American Chemical Society
  • Japan OLED Forum
  • The Society of Polymer Science, Japan
  • The Japan Society of Applied Physics
  • The Chemical Society of Japan