Publications and Awards

Publications :

(preprints)


44. H. Murase, S. Arai, T. Sato, K. Miyagawa, H. Mori, T. Hasegawa, and K. Kanoda, 

"Classical to quantum crossover in frustration-induced charge glass", submitted.


(published)


43. S. Arai, "Advanced self-assembly control of rod-shaped organic semiconductors", Proceedings of SPIE - The International Society for Optical Engineering 12907, 1290705 (2024). 


42. K. Murata, G. Kitahara, S. Inoue, T. Higashino, S. Matsuoka, S. Arai, R. Kumai, T. Hasegawa, 

"Stability of ternary interfaces and its effects on ideal switching characteristics in inverted coplanar organic transistors", Physical Review Applied  21(2), 024005 (2024).


41. T. Higashino, S. Inoue, S. Arai, S. Tsuzuki, H. Matsui, R. Kumai, K. Takaba, S. M.-Yonekura, H. Kurokawa, I. Inoue, K. Tono, K. Yonekura, T. Hasegawa, "Effects of thiophene-fused isomer on high layered crystallinity in π-extended and alkylated organic semiconductors", 

Chemistry of Materials 36(2), 848–859 (2024)


40. H. Murase, S. Arai, T. Hasegawa, K. Miyagawa, and K. Kanoda, 

"Spatiotemporal observation of quantum crystallization of electrons", 

Nature Communications 14, 6011 (2023).


39. Y. Uemura, S. Matsuoka, S. Arai, J. Harada, and T. Hasegawa, 

"Intersecting multiaxial domain walls in plastic ferroelectric crystal films", 

Physical Review Materials 7, 035601 (2023).


38. S. Arai, S. Inoue, M. Tanaka, S. Tsuzuki, R. Kondo, R. Kumai, and T. Hasegawa, 

"Temperature-induced transformation between layered herringbone polymorphs in molecular bilayer organic semiconductors", 

Physical Review Materials 7, 025602 (2023).


37. S. Matsuoka, K. Ogawa, R. Ono, K. Nikaido, S. Inoue, T. Higashino, M. Tanaka, J. Tsutsumi, R. Kondo, R. Kumai, H. Matsui, S. Tsuzuki, S. Arai, T. Hasegawa, 

"Highly stable and isomorphic donor–acceptor stacking in a family of n-type organic semiconductors of BTBT–TCNQ derivatives", Journal of Materials Chemistry C, 10, 16471–16479 (2022).


36. K. Nikaido, S. Inoue, R. Kumai, T. Higashino, S. Matsuoka, S. Arai, and T. Hasegawa, 

"Mixing-Induced Orientational Ordering in Liquid-Crystalline Organic Semiconductor", 

Advanced Materials Interfaces, 9(35), 2201789 (2022).


35. S. Inoue, K. Nikaido, T. Higashino, S. Arai, M. Tanaka, R. Kumai, S. Tsuzuki, S. Horiuchi, H. Sugiyama, Y. Segawa, K. Takaba, S. Maki-Yonekura, K. Yonekura, and T. Hasegawa, "Emerging Disordered Layered-Herringbone Phase in Organic Semiconductors Unveiled by Electron Crystallography",

Chemistry of Materials 34(1), 72–83 (2022).


34. S. Arai, "Environmental Response Sensors Produced Using Bilayer-Type Organic Semiconductors", 

Journal of Robotics Mechatronics, 34 (2) 257-259, (2022). (新学術領域紹介記事)


33. G. Kitahara, M. Ikawa, S. Matsuoka, S. Arai, and T. Hasegawa, 

"Approaching Trap-Minimized Polymer Thin-Film Transistors", 

Advanced Functional Materials 31(52), 2105933 (2021). 


32. T. Higashino, S. Inoue, S. Arai, H. Matsui, N. Toda, S. Horiuchi, R. Azumi, and T. Hasegawa, 

"Architecting Layered-Crystalline Organic Semiconductors Based on Unsymmetric π-Extended Thienoacenes", 

Chemistry of Materials, 33(18), 73797385 (2021). selected as the supplementary cover.

 

31. S. Inoue, T. Higashino, S. Arai, R. Kumai, H. Matsui, S. Tsuzuki, S. Horiuchi, and T. Hasegawa, 

"Regioisomeric control of layered crystallinity in solution-processable organic semiconductors", 

Chemical Science 11, 12493 (2020).

 

30. Y. Kinoshita, M. Sotome, T. Miyamoto, Y. Uemura, S. Arai, S. Horiuchi, T. Hasegawa, H. Okamoto, and N. Kida, 

"Observation of the Three-Dimensional Polarization Vector in Films of Organic Molecular Ferroelectrics Using Terahertz Radiation Emission", 

Physical Review Applied, 14, 054002 (2020)


29. S. Arai

"Semiconductive Single Molecular Bilayers: a New Platform for High-Performance Organic Transistors", 

2020 27th International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD), 

IEEE Xplore, 15, pp. 6366. (2020). 


28. G. Kitahara, S. Inoue, T. Higashino, M. Ikawa, T. Hayashi, S. Matsuoka, S. Arai, and T. Hasegawa, 

"Meniscus-controlled printing of single-crystal interfaces showing extremely sharp switching transistor operation", 

Science Advances 6, eabc8847 (2020).   


27. H. Tsurusawa, S. Arai, and H. Tanaka, 

"A unique route of colloidal phase separation yields stress-free gels", 

Science Advances 6, eabb8107 (2020).  


26. Y. Uemura, S. Matsuoka, J. Tsutsumi, S. Horiuchi, S. Arai, and T. Hasegawa, 

"Birefringent Field-Modulation Imaging of Transparent Ferroelectrics", 

Physical Review Applied 14, 024060 (2020).  


25. T. Hayashi, Y. Hirakawa, S. Inoue, S. Arai, and T. Hasegawa, 

"Anomalous Hydrodynamic Size Distributions of Alkylamine/Alkylacid-Encapsulated Silver Nanocolloids: Implications for Printing Ultrafine Conductive Patterns", 

ACS Applied Nano Materials, 3(7), 68846891 (2020).


24. T. Hamai, S. Inoue, S. Arai, and T. Hasegawa, 

"Trap-state suppression and band-like transport in bilayer-type organic semiconductor ultrathin single crystals", 

Physical Review Materials, 4, 074601 (2020).


23. T. Higashino, S. Arai, S. Inoue, S. Tsuzuki, Y. Shimoi, S. Horiuchi, T. Hasegawa, and R. Azumi, 

"Architecting layered molecular packing in substituted benzobisbenzothiophene (BBBT) semiconductor crystals", 

CrystEngComm, 22, 3618–3626 (2020).


22. Y. Uemura, S. Arai, J. Tsutsumi, S. Matsuoka, H. Yamada, R. Kumai, S. Horiuchi, A. Sawa and T. Hasegawa, 

"Ferroelectrics field modulation imaging: A useful technique for domain and domain-wall observations", 

Ferroelectrics, 556, 3743 (2020).


21. S. Arai, K. Morita, J. Tsutumi, S. Inoue, M. Tanaka, and T. Hasegawa, 

"Layered‐Herringbone Polymorphs and Alkyl‐Chain Ordering in Molecular Bilayer Organic Semiconductors", 

Advanced Functional Materials, 30, 1906406 (2020).


20. G. Kitahara, M. Ikawa, S. Matsuoka, S. Arai, and T. Hasegawa, 

"Use of surface photo-reactive nanometal printing for polymer thin-film transistors: contact resistance and short-channel effects", 

MRS communications, 9, 1181–1185 (2019).


19. Y. Hirakawa, K. Aoshima, S. Arai, and T. Hasegawa, 

"Phase and Dispersion Stability of Silver Nanocolloids for Nanoparticle-Chemisorption Printing", 

ACS Applied Nano Materials, 2, 4342–4349 (2019).


18. T. Higashino, S. Inoue, Y. Sadamitsu, S. Arai, S. Horiuchi, and T. Hasegawa, 

"Bilayer-type Layered Herringbone Packing in 3-n-Octyl-9-phenyl-benzothieno[3,2-b]naphtho[2,3-b]thiophene", 

Chemistry Letters, 48, 453–456 (2019).


17. Y. Uemura, S. Arai, J. Tsutsumi, S. Matsuoka, H. Yamada, R. Kumai, S. Horiuchi, A. Sawa, and T. Hasegawa, 

"Field-Modulation Imaging of Ferroelectric Domains in Molecular Single-Crystal Films", 

Physical Review Applied, 11, 014046 (2019). 


16. S. Inoue, S. Sinamura, Y. Sadamitsu, S. Arai, S. Horiuchi, M. Yoneya, K. Takimiya, and T. Hasegawa, 

"Extended and Modulated Thienothiophenes for Thermally Durable and Solution-Processable Organic Semiconductors", 

Chemistry of Materials, 30, 5050–5060 (2018). 


15. T. Hamai, S. Arai, and T. Hasegawa, 

"Effects of tunneling-based access resistance in layered single-crystalline organic transistors", 

Journal of Materials Research, 33, 2350–2363 (2018).


14. G. Kitahara, K. Aoshima, J. Tsutsumi, H. Minemawari, S. Arai and T. Hasegawa, 

"SuPR-NaP Technique for Printing Ultrafine Silver Electrodes and its Use for Low-Voltage Operation of Organic Thin-Film Transistors", 

MRS Advances, 3, 2931–2936. (2018).


13. K. Aoshima, Y. Hirakawa, T. Togashi, M. Kurihara, S. Arai, and T. Hasegawa, 

"Unique coexistence of dispersion stability and nanoparticle chemisorption in alkylamine/alkylacid encapsulated silver nanocolloids", 

Scientific Reports 8, 6133 (2018).


12. S. Arai, S. Inoue, T. Hamai, R. Kumai, and T. Hasegawa, 

"Semiconductive Single Molecular Bilayers Realized Using Geometrical Frustration",  

Advanced Materials, 30, 1707256, 1–7 (2018).


11. T. Hamai, S. Arai, H. Minemawari, S. Inoue, R. Kumai, and T. Hasegawa, 

"Tunneling and Origin of Large Access Resistance in Layered-Crystal Organic Transistors", 

Physical Review Applied, 8, 054011 (2017).


10. G. Kitahara, K. Aoshima, J. Tsutsumi, H. Minemawari, S. Arai, and T. Hasegawa, 

"Low-voltage operation of organic thin-film transistors based on ultrafine printed silver electrodes", 

Organic Electronics, 50, 426–428 (2017).


9. Y. Shibata, J. Tsutsumi, S. Matsuoka, H. Minemawari, S. Arai, R. Kumai, and T. Hasegawa, 

"Unidirectionally Crystallized Stable n-type Organic Thin-Film Transistors Based on Solution-Processable Donor-Acceptor Compounds", 

Advanced Electronic Materials, 1700097 (2017).


8. K. Aoshima, S. Arai, T. Yamada, K. Fukuhara, and T. Hasegawa, 

"Surface modification of printed silver electrodes for efficient carrier injection in organic thin-film transistors",

Organic Electronics, 41, 137–142 (2017). 


7. S. Arai, and H. Tanaka, 

"Surface-assisted single crystal formation of charged colloids", 

Nature Physics, 13, 503–509 (2017).


6. S. Inoue, H. Minemawari, J. Tsutsumi, T. Hamai, S. Arai, T. Yamada, S. Horiuchi, M. Tanaka, M. Yoneya, R. Kumai, and T. Hasegawa, 

"Molecular Requirements for Printable Organic Semiconductors in 7-Alkyl-2-phenyl[1]benzothieno[3,2-b][1]benzothiophenes (Ph-BTBT-Cn's)", 

MRS Advances, 1, 38 2653–2658, (2016). 


5. T. Yamada, K. Fukuhara, K. Matsuoka, H. Minemawari, J. Tsutsumi, N. Fukuda, K. Aoshima, S. Arai, Y. Makita, H. Kubo, T. Togashi, M. Kurihara, and T. Hasegawa, 

"Nanoparticle chemisorption printing technique for conductive silver patterning with submicron resolution", 

Nature Communications, 7, 11402 (2016).

 

4. S. Arai

"Primary Phenomenon in the Network Formation of Endothelial Cells: Effect of Charge", 

International Journal of Molecular Science, 12, 29148–29160 (2015). selected as the cover. 


3.Y. Noda, H. Minemawari, H. Matsui, T. Yamada, S. Arai, T. Kajiya,  M. Doi, and T. Hasegawa, 

"Underlying Mechanism of Inkjet Printing of Uniform Organic Semiconductor Film through Antisolvent Crystallization", 

Advanced Functional Materials 25, 4022–4031 (2015).


2. S. Arai, and M. Doi, 

"Anomalous Drying Dynamics of a Polymer Solution on a Substrate", 

European Physical Journal E 36, 63 (2013).


1. S. Arai, and M. Doi, 

"Skin Formation and Bubble Growth during Drying Process of Polymer Solution", 

European Physical Journal E 35, 57 (2012). 

Books:

4. 荒井 俊人, 「塗布・乾燥のトラブル対策」第3章 第3節 高分子溶液の乾燥過程におけるスキン層の形成と乾燥トラブル, 技術情報協会, ISBN: 978-4-86104-952-1 (20235月).  

3. 荒井 俊人, 「マテリアルズインフォマティクスのためのデータ作成とその解析、応用事例」第5章 6節 ソフトマター科学におけるシミュレーションやインフォマティクスの活用, 技術情報協会, ISBN: 978-4-86104-854-8 (2021年7月).  

2. 荒井 俊人, 「マテリアルズ・インフォマティクスQ&A集-解析実務と応用事例-」 7章問9 塗布・乾燥工程におけるMIの可能性とは?, 

同7章問16 MIを活用したソフトマター材料開発の進展や課題は?, 情報機構, ISBN: 978-4-86502-204-9 (2020年12月).  

1. 長谷川 達生, 荒井 俊人, 「放射光利用の手引き―農水産・医療,エネルギー,環境,材料開発分野などへの応用―」 Chapter 4, 放射光とプリンテッドエレクトロニクス―塗布型有機TFTの高性能化に向けて―, アグネ技術センター (2019年2月). 

Other publications:


5. 荒井 俊人, 「層状有機半導体の結晶構造エンジニアリングと高性能薄膜トランジスタ」, 日本化学会 有機結晶部会ニュースレター, No. 53, Recrystallization (ショートレビュー), 11-12 (2023年1月). 

4. 荒井 俊人, 「ソフトマターの建築士を目指して (Toward a Soft-Matter Architect)」, 高分子学会誌,グローイングポリマー 72, 24 (2023年1月). 

3. 荒井 俊人, 「有機半導体の分子積層制御による二次元化」, 高分子学会誌,トピックス 特集 精密と曖昧のええ加減 70, 89 (2021年2月). 

2. 荒井 俊人, 「有機半導体単層2分子膜の構築と高性能薄膜トランジスタへの応用」, 応用物理学会 有機分子・バイオエレクトロニクス分科会誌: M&BE 186(13) (2019年11月).

1. S. Arai, S. Inoue, R. Kumai, and T. Hasegawa, 

"Single Molecular Bilayers of Organic Semiconductors Realized through Geometrical Frustration", 1-2, PF highlights 2018 (Link). 

Awards :

10. The Young Scientists’ Award, The Commendation for Science and Technology 

by the Minister of Education, Culture, Sports, Science and Technology (Apr. 2024).

9. ARN Young Scientists Awards, Asian Research Network Korea (Nov. 2022). 

8. Kao Science Encouragement Award, Kao foundation (Jun. 2022).

7. Young Scientist Award, The Physical Society of Japan (Mar. 2022).

6. Molecular Electronics and Bioelectronics Division Encouragement Award, The Japan Society of Applied Physics (Sep. 2019). 

5. PF Highlights 2018, Photon Factory (Apr. 2019).

4. NF Foundation R&D Encouragement Award, NF-foundation (Oct. 2018).

3. Poster Award, The Japan Society of Applied Physics (Mar. 2018). 

2. Young Scientist Presentation Award, The Japan Society of Applied Physics (Mar. 2017). 

1. Best Poster Award 

S. Arai, Y. Shimokawa, Y. Sumino, M. Doi "Observation of Surface Layer during Drying Processes of Polymer Solution" (poster) International Conference on Hierarchical Structures in Complex Fluids (KITPC Kavli Institute for Theoretical Physics in China at the Chinese Academy of Sciences, Beijing, China, Jul. 5-8, 2011)


(co-authored)

2. Young Scientist Presentation Award, Japan Society of Applied Physics, 

Y. Uemura, S. Arai, J. Tsutsumi, S. Matsuoka, R. Kumai, S. Horiuchi, and T. Hasegawa (Nov. 2018).

1. Young Scientist Presentation Award, Japan Society of Applied Physics, 

Y. Shibata, J. Tsutsumi, S. Matsuoka, H. Minemawri, S. Arai, and T. Hasegawa (Sep. 2015).