Publications
Research Papers
2024
- [84] “Bright, efficient, and stable pure-green hyperfluorescent organic light-emitting diodes by judicious molecular design”
- Lee, Y.-T.; Chan, C.-Y.; Matsuno, N.; Uemura, S.; Oda, S.; Kondo, M.; Weerasinghe, R. W.; Hu, Y.; Lestanto, G. N. I.; Tsuchiya, Y.; Li, Y.; Hatakeyama, T.; Adachi, C.
Nat. Commun. 2024, 15, 3174. doi 
- [83] “Highly efficient multi-resonance thermally activated delayed fluorescence material toward a BT.2020 deep-blue emitter”
- Ochi, J.; Yamasaki, Y.; Tanaka, K.; Kondo, Y.; Isayama, K.; Oda, S.; Kondo, M.; Hatakeyama, T.
Nat. Commun. 2024, 15, 2361. doi 
- [82] “A Rigid Multiple Resonance Thermally Activated Delayed Fluorescence Core Toward Stable Electroluminescence and Lasing”
- Tang, X.; Xie, M.; Lin, Z.; Mitrofanov, K.; Tsagaantsooj, T.; Lee, Y.-T.; Kabe, R.; Sandanayaka, A. S. D.; Matsushima, T.; Hatakeyama, T.; Adachi, C.
Angew. Chem. Int. Ed. 2024, 63, e202315120. doi 
- [81] “SciPROP-R: An Effective Bisphosphine Ligand for the Chemo-selective Iron-Catalyzed Suzuki–Miyaura Coupling of Alkyl Chlorides”
- Nakajima, S.; Hashimoto, T.; Lu, S.; Hahizume, D.; Matsuda, H.; Hatakeyama, T.; Isozaki, K.; Takaya, H.; Nakamura, M.
Bull. Chem. Soc. Jpn. 2023, 96, 1298–1309. doi 
- [80] “Solution-Processable Ultrapure-Blue Light-Emitting Electrochemical Cells”
- Tanaka, Y.; Ito, S.; Liu, J.; Ou, H.; Tanaka, H.; Pu, J.; Ikeno, A.; Hatakeyama, T.; Takenobu, T.
Adv. Optical Mater. 2023, 11, 2301119. doi 
- [79] “One-Shot Construction of BN-Embedded Heptadecacene Framework Exhibiting Ultra-narrowband Green Thermally Activated Delayed Fluorescence”
- Sano, Y.; Shintani, T.; Hayakawa, M.; Oda, S., Kondo, M.; Matsushita, T.; Hatakeyama, T.
J. Am. Chem. Soc. 2023, 145, 11504–11511. doi 
- [78] “Spiroborate-Based Host Materials with High Triplet Energies and Ambipolar Charge-Transport Properties”
- Hayakawa, M.; Kameda, M.; Kawasumi, R.; Nakatsuka, S.; Yasuda, N.; Hatakeyama, T.
Angew. Chem. Int. Ed. 2023, 62, e202217512 doi
Selected as a Frontispiece 
- [77] “Unlocking the Full Potential of Electron Acceptor Molecules for Efficient and Stable Hole Injection”
- Ono, T.; Okada, T.; Sasaki, T.; Inagaki, K.; Ushiku, T.; Shimizu, T.; Hatakeyama, T.; Fukagawa, H.
Adv. Mater. 2023, 35, 2210413. doi 
- [76] “Sequential Multiple Borylation Toward an Ultrapure Green Thermally Activated Delayed Fluorescence Material”
- Uemura, S.; Oda, S.; Hayakawa, M.; Kawasumi, R.; Ikeda, N.; Lee, Y.-T.; Chan, C.-Y.; Tsuchiya, Y.; Adachi, C.; Hatakeyama, T.
J. Am. Chem. Soc. 2023, 145, 1505–1511. doi
Selected as a supplementary cover
Highlighted in SYNFACTS (04/2023) 
- [75] “Very low lasing threshold of DABNA derivatives with DFB structures”
- Mamada, M.; Maeda, S.; Oda, S.; Nguyen, T. B.; Nakanotani, H.; Hatakeyama, T.; Adachi, C.
Mater. Chem. Front. 2023, 7, 259–266. doi 
- [74] “Ultra-Narrowband Blue Multi-Resonance Thermally Activated Delayed Fluorescence Materials”
- Oda, S.; Kawakami, B.; Horiuchi, M.; Yamasaki, Y.; Kawasumi, R.; Hatakeyama, T.
Adv. Sci. 2023, 10, 2205070. doi (Open Access) 
- [73] “Synthesis and Late-Stage Diversification of BN-Embedded Dibenzocorannulenes as Efficient Fluorescence Organic Light-Emitting Diode Emitters”
- Okada, N.; Nakatsuka, S.; Kawasumi, R.; Gotoh, H.; Yasuda, N.; Hatakeyama, T.
Chem. Eur. J. 2023, 29, e202202627. doi 
- [72] “Development of Pure Green Thermally Activated Delayed Fluorescence Material by Cyano Substitution”
- Oda, S.; Sugitani, T.; Tanaka, H.; Tabata, K.; Kawasumi, R.; Hatakeyama, T.
Adv. Mater. 2022, 34, 2201778. doi 
- [71] “Highly Efficient Deep-Blue Organic Light-Emitting Diodes Based on Rational Molecular Design and Device Engineering”
- Mamada, M.; Katagiri, H.; Chan, C.-Y.; Lee, Y.-T.; Goushi, K.; Nakanotani, H.; Hatakeyama, T.; Adachi, C.
Adv. Funct. Mater. 2022, 32, 2204352. doi 
- [70] “Nitrogen Extrusion of Diazacorrphycenes to Azacorroles and Synthesis of Two Types of Copper 10-Azacorrole Complexes”
- Yagi, A.; Okada, N.; Fukui , N.; Tanaka, H.; Hatakeyama, T.; Shinokubo, H.
Chem. Lett. 2022, 51, 321–324. doi 
- [69] “One-Shot Synthesis of Expanded Heterohelicene Exhibiting Narrowband Thermally Activated Delayed Fluorescence”
- Oda, S.; Kawakami, B.; Yamasaki, Y.; Matsumoto, R.; Yoshioka, M.; Fukushima, D.; Nakatsuka, S.; Hatakeyama, T.
J. Am. Chem. Soc. 2022, 144, 106–112. doi
Highlighted in SYNFACTS
One of most cited publications from 2020-2021. 
- [68] “Hypsochromic Shift of Multiple-Resonance-Induced Thermally Activated Delayed Fluorescence by Oxygen Atom Incorporation”
- Tanaka, H.; Oda, S.; Ricci, G.; Gotoh, H.; Tabata, K.; Kawasumi, R.; Beljonne, D.; Olivier, Y.; Hatakeyama, T.
Angew. Chem., Int. Ed. 2021, 60, 17910–17914. doi
Top downloaded article among works published in an issue between 1 January – 31 December 2021 of Angew. Chem. Int. Ed. 
- [67] “Syntheses and Physical Properties of Cationic BN‐Embedded Polycyclic Aromatic Hydrocarbons”
- Gotoh, H.; Nakatsuka, S.; Tanaka, H.; Yasuda, N.; Haketa, Y.; Maeda, H.; Hatakeyama, T.
Angew. Chem., Int. Ed. 2021, 60, 12835–12840. doi 
- [66] “Iron-Catalyzed Cross-Coupling Reactions Tuned by Bulky ortho-Phenylene Bisphosphine Ligands”
- Adak, L.; Hatakeyama, T.; Nakamura, M.
Bull. Chem. Soc. Jpn. 2021, 94, 1125–1141. doi 
- [65] “Development of One-Shot/One-Pot Borylation Reactions toward Organoboron-Based Materials”
- Oda. S.; Hatakeyama, T.
Bull. Chem. Soc. Jpn. 2021, 94, 950–960. doi 
- [64] “Investigating HOMO Energy Levels of Terminal Emitters for Realizing High‐Brightness and Stable TADF‐Assisted Fluorescence Organic Light‐Emitting Diodes”
- Lee, Y.‐T.; Chan, C.‐Y.; Tanaka, M.; Mamada, M.; Balijapalli, U.; Tsuchiya, Y.; Nakanotani, H.; Hatakeyama, T.; Adachi, C.
Adv. Electron. Mater. 2021, 7, 2001090. doi 
- [63] “Hot Vibrational States in a High-Performance Multiple Resonance Emitter and the Effect of Excimer Quenching on Organic Light-Emitting Diodes”
- Stavrou, K.; Danos, A.; Hama, T.; Hatakeyama, T.; Monkman, A.
ACS Appl. Mater. Interfaces 2021, 13, 8643–8655. doi 
- [62] “Stable Pure-blue Hyperfluorescence Organic Light-emitting Diodes with High-efficiency and Narrow Emission”
- Chan, C.-Y.; Tanaka, M.; Lee, Y.-T.; Wong, Y-W.; Nakanotani, H.; Hatakeyama, T.; Adachi, C.
Nat. Photonics 2021, 15, 203–207. doi 
- [61] “Carbazole-Based DABNA Analogues as Highly Efficient Thermally Activated Delayed Fluorescence Materials for Narrowband Organic Light-Emitting Diodes”
- Oda, S.; Kumano, W.; Hama, T.; Kawasumi, R.; Yoshiura, K.; Hatakeyama, T.
Angew. Chem., Int. Ed. 2021, 60, 2882–2886. doi 
- [60] “Solution-Processable Pure Green Thermally Activated Delayed Fluorescence Emitter Based on the Multiple Resonance Effect”
- Ikeda, N.; Oda, S.; Matsumoto, R.; Yoshioka, M.; Fukushima, D.; Yoshiura, K.; Hatakeyama, T.
Adv. Mater. 2020, 32, 2004072. doi 
- [59] “The Role of Reverse Intersystem Crossing Using a TADF‐Type Acceptor Molecule on the Device Stability of Exciplex‐Based Organic Light‐Emitting Diodes”
- Nguyen, T. B.; Nakanotani, H.; Hatakeyama, T.; Adachi C.
Adv. Mater. 2020, 32, 1906614. doi 
- [58] “Multiple Electrophilic C–H Borylation of Arenes Using Boron Triiodide”
- Oda, S.; Ueura, K.; Kawakami, B.; Hatakeyama, T.
Org. Lett. 2020, 22, 700−704. doi 
- [57] “Solvent‐Vapor‐Induced Reversible Single‐Crystal‐to‐Single‐Crystal Transformation of a Triphosphaazatriangulene‐based Metal–Organic Framework”
- Nakatsuka, S.; Watanabe, Y.; Kamakura, Y.; Horike, S.; Tanaka, D.; Hatakeyama, T.
Angew. Chem., Int. Ed. 2020, 59, 1435-1439. doi
Selected as a Back Cover of Angewandte Chemie 
- [20] “タンデムボラFriedel-Crafts反応を鍵とした有機エレクトロニクス材料の開発”
- 畠山琢次
有機合成化学協会誌 2024, 82(2), 117–129. doi - [19] “Organoboron-based multiple-resonance emitters: synthesis, structure–property correlations, and prospects”
- Mamada, M.; Hayakawa, M.; Ochi, J.; Hatakeyama, T.
Chem. Soc. Rev. 2024, 53, 1624–1692. doi (Open Access) 
- [18] タンデムヘテロFriedel-Crafts反応の開発 －高色純度青色発光材料「DABNA」の着想に至るまで
- 畠山琢次
ドラマチック有機合成化学 有機合成化学協会編, 2023, pp160–161. - [17] 新・化学を創っていく人びと
- 畠山琢次
月刊化学 2022, 77(5), 40–45. - [16] 高色純度熱活性化遅延蛍光材料の開発
- 畠山琢次
CSJ カレントレビュー・シリーズ第40巻「多様な色素材料の新展開」 2021, 70–76. - [15] 多重共鳴効果による超狭帯域青色発光材料の開発
- 畠山琢次
光学 2020, 49(4), 159-161. - 国内出願200件，PCT出願52件，外国出願335件（2024.2.1）
2023
2022
2021
2020
Reviews and Book Chapters