Publication, Awards & Patents
Book
(1) Nanoscale Electrocrystallization: Eco-Friendly and Site-Selective Nanofabrication of Organic Nanocrystals Based on Electrochemistry
H. Hasegawa
21st Century Nanoscience – A Handbook (Editor: Klaus D. Sattler)
Volume 2: Design Strategies for Synthesis and Fabrication, Chapter 19.
CRC Press (Taylor and Francis Group), Boca Raton, FL, 2019. ISBN: 9780815392330
Papers (since 2013)
Biomaterial-based Biomimetic Visual Sensors: Inkjet Patterning of Bacteriorhodopsin
H. Hasegawa, K. Sakamoto, K. Shomura, Y. Sano, K. Kasai, S. Tanaka, Y. Okada-Shudo, A. Otomo
ACS Applied Materials & Interfaces, 15, 45137−45145 (2023).
Fabrication of Gabor Filtering Photosensors Using the Printing Patterns of Bacteriorhodopsin
K. Kasai, H. Hasegawa, Y. Okada-Shudo, S. Tanaka, A. Otomo
OSA Advanced Photonics Congress (AP) 2019 (IPR, Networks, NOMA, SPPCom, PVLED) (2019).
Electronic Properties of Tin Iodide Hybrid Perovskites: Effect of Indium Doping
K. Kobayashi, H. Hasegawa, Y. Takahashi, J. Harada, T. Inabe
Materials Chemistry Frontiers, Vol. 2, pp. 1291−1295 (2018).
Band-Like Carrier Transport at the Single-Crystal Contact Interfaces Between 2,5-Difluoro-7,7,8,8-Tetracyanoquinodimethane and Electron Donors
T. Shimada, Y. Takahashi, J. Harada, H. Hasegawa, T. Inabe
Journal of Physical Chemistry Letters, Vol. 9, pp. 420−424 (2018).
Inkjet Printing and Nanoscale Electrocrystallization: Complete Fabrication of Organic Microcrystals-based Devices Under Ambient Conditions
H. Hasegawa
Applied Materials Today, Vol. 9, pp. 487–492 (2017).
Effect of High Pressure on Resistance in Au(dmit)2 LB Films
Y. F. Miura, H. Hasegawa, K. Torizuka, Y. Uwatoko
Journal of Physics: Conference Series, Vol. 924, pp. 01207 (2017).
Effective Band Gap Tuning by Foreign Metal Doping in Hybrid Tin Iodide Perovskites
H. Hasegawa, K. Kobayashi, Y. Takahashi, J. Harada, T. Inabe
Journal of Materials Chemistry C, Vol. 5, pp. 4048–4052 (2017).
Structural and Transport Properties of Neutral Radical Crystals of CoIII(tmp)(CN)2 (tmp = 5,10,15,20-tetramethylporphyrinato) and the CN-Bridged Polymer of [CoIII(tmp)(CN)]n
M. Kurokawa, J. F. F. Jose-Larong, H. Hasegawa, Y. Takahashi, J. Harada, T. Inabe
Dalton Transactions, Vol. 46, pp. 4422–4429 (2017).
Directionally tunable and mechanically deformable ferroelectric crystals from rotating polar globular ionic molecules
J. Harada, T. Shimojo, H. Oyamaguchi, H. Hasegawa, Y. Takahashi, K. Satomi, Y. Suzuki, J. Kawamata, T. Inabe
Nature Chemistry, Vol. 8, pp. 946–952 (2016).
Fabrication of Conducting Thin Films on the Surfaces of 7,7,8,8-Tetracyanoquinodimethane Single-Component and Charge-Transfer Complex Single Crystals: Nucleation, Crystal Growth, Morphology, and Charge Transport
Y. Takahashi, T. Mikasa, K. Hayakawa, S. Yokokura, H. Hasegawa, J. Harada, T. Inabe
Journal of Physical Chemistry C, Vol. 120, pp. 17537–17545 (2016).
Electrical Properties of Organic-Inorganic Hybrid Tin Bromide Cubic Perovskites: Hole-Doping and Iodide Substitution Effects
H. Hasegawa, T. Inabe
New Journal of Chemistry, Vol. 40, pp. 7043–7047 (2016).
Charge Carrier Doping into the Peierls Insulator of the TCNQ Anion Radical Salt (TCNQ = 7,7,8,8-Tetracyanoquinodimethane)
H. Kubota, Y. Takahashi, H. Hasegawa, J. Harada, T. Inabe
Journal of Physical Chemistry C, Vol. 120, pp. 11545–11551 (2016).
Transport Characteristics of the Organic Field-Effect Transistors Based on Charge Transfer Complex as Semiconductors
S. Yokokura, Y. Takahashi, H. Hasegawa, J. Harada, T. Inabe
Journal of Nanoscience and Nanotechnology, Vol. 16, pp. 3355–3359 (2016).
Current-dependent formation of Bechgaard salt nanocrystals using nanoscale electrocrystallization for the fabrication of organic nanodevices
H. Hasegawa
Materials Today Communications, Vol. 7, pp. 11–15 (2016).
Tetrathiafulvalene-based Nanocrystals: Site-selective Formation, Device Fabrication and Electrical Properties
H. Hasegawa
Journal of Materials Chemistry C, Vol. 3, pp. 8986–8991 (2015).
Switching of Transfer Characteristics of an Organic Field-Effect Transistor by Phase Transitions: Sensitive Response to Molecular Dynamics and Charge Fluctuation
S. Yokokura, Y. Takahashi, H. Nonaka, H. Hasegawa, J. Harada, T. Inabe, R. Kumai, H. Okamoto, M. M. Matsushita, K. Awaga
Chemistry of Materials, Vol. 27, No. 12, pp. 4441–4449 (2015).
Highly Ordered Alignment of Conducting Nano-crystallites on Organic Semiconductor Single Crystal Surfaces
T. Mikasa, Y. Takahashi, K. Hayakawa, S. Yokokura, H. Hasegawa, J. Harada, T. Inabe
Thin Solid Films, Vol. 579, pp. 38–43 (2015).
Hole Doping of Tin Bromide and Lead Bromide Organic–Inorganic Hybrid Semiconductors
G. S. Lorena, H. Hasegawa, Y. Takahashi, J. Harada, T. Inabe
Chemistry Letters, Vol. 43, pp. 1535–1537 (2014).
Novel method for the fabrication of a charge transfer complex crystal by photoirradiation
M. Matsuda, M. Nishi, S. Koga, M. Fujishima, N. Hoshino, T. Akutagawa, H. Hasegawa
Chemistry - A European Journal, Vol. 20, pp. 11318–11321 (2014).
One-dimensional phthalocyanine-based conductor with S = 3/2 isotropic magnetic centers
Y. Takita, H. Hasegawa, Y. Takahashi, J. Harada, A. Kanda, N. Hanasaki, T. Inabe
Journal of Porphyrins and Phthalocyanines, Vol. 18, pp. 814–823 (2014).
Site-selective Electrochemical Fabrication of Lithium Phthalocyanine Nanocrystals
H. Hasegawa
Science of Advanced Materials, Vol. 6, No. 7, pp. 1548–1552 (2014).
Charge Conduction Properties at the Contact Interface between (Phthalocyaninato)nickel(II) and Electron Acceptor Single Crystals
Y. Takahashi, K. Hayakawa, K. Takayama, S. Yokokura, J. Harada, H. Hasegawa, T. Inabe
Chemistry of Materials, Vol. 26, pp. 993–998 (2014).
Site-selectively Fabricated Phthalocyanine Neutral Radical Nanocrystals: Structure and Electrical Properties
H. Hasegawa
Journal of Materials Chemistry C, Vol. 1, pp. 7890–7895 (2013).
Hall mobility in tin iodide perovskite CH3NH3SnI3: Evidence for a doped semiconductor
Y. Takahashi, H. Hasegawa, Y. Takahashi, T. Inabe
Journal of Solid State Chemistry, Vol. 205, pp. 39–43 (2013).
Giant Negative Magnetoresistance in an Organic Nanocrystal: Site-selective Device Fabrication by Nanoscale Electrocrystallization
H. Hasegawa, M. Matsuda, H. Tajima
Journal of Materials Chemistry C, Vol. 1, pp. 6416–6421 (2013).
Fabrication of Sodium Phthalocyanine Nanocrystals Using Nanoscale Electrocrystallization
H. Hasegawa
New Journal of Chemistry, Vol. 37, pp. 2271–2274 (2013).
Electrochemical Crystallization of Organic Molecular Conductors: Electrode Surface Conditions for Crystal Growth
T. Miyahira, H. Hasegawa, Y. Takahashi, T. Inabe
Crystal Growth & Design, Vol. 13, pp. 1955–1960 (2013).
Electrochemically Fabricated Phthalocyanine-based Molecular Conductor Films and Their Potential Use in Organic Electronic Devices
M. Matsuda, N. Kinoshita, M. Fujishima, S. Tanaka, H. Hasegawa
Applied Physics Express, Vol. 6, pp. 021602 (2013).
Invited Lectures (since 2013)
(1) ナノ電解法 ～低環境負荷な有機ナノ単結晶の位置選択的製造技術～
長谷川裕之
令和３年 電気学会 基礎・材料・共通部門大会（2021年9月, オンライン）
(2) Nanoscale Electrocrystallization: A Site-Selective Electrochemical π-Figuration of Nanocrystals for Electronic Devices
H. Hasegawa
The 233rd Meeting of the Electrochemical Society (Seattle, USA, 2018.5)
(3) Site-Selective Electrochemical π-Figuration: Electromagnetic Device Fabrication Using Nanoscale Electrocrystallization
H. Hasegawa
π-Figuration German-Japanese Workshop Heidelberg (Heidelberg, Germany, 2017.11)
(4) Fabrication of biomimetic sensing devices using bacteriorhodopsin via an inkjet printing method
H. Hasegawa, K. Kasai, T. Yamada, S. Tanaka, Y. Tominari, T. Kaji, Y. Okada-Shudo, Akira Otomo
SPIE2017 The International Society for Optics and Photonics (San Diego, USA, 2017.8)
(5) 有機・無機ハイブリッドペロブスカイトの材料設計と電子構造
長谷川裕之，稲辺保
日本学術振興会アモルファス・ナノ材料第147委員会129回研究会（2015年7月, 東京）
(6) 有機・無機ハイブリッド金属ハロゲン化物ペロブスカイトの構造と物性制御
稲辺保，長谷川裕之
応用物理学会第62回春季学術講演会（2015年3月, 神奈川）
(5) Nanoscale Electrocrystallization: A Site-selective Fabrication of Organic Nanocrystalline Devices
H. Hasegawa
The 3rd Philippine Materials Science Conference (Manila, Philippines, 2014.3)
Awards
(1) Oral Presentation Award, Japan Research Institute of Material Technology
Japan Research Institute of Material Technology Annual Meeting 2018
(December 2018, Tokyo)
(2) 1st Prize , The 2nd JSAP Photo Contest The Japan Society of Applied Physics,
The 74th JSPS Autumn Meeting
(September 2013, Kyotanabe, Kyoto)
(3) The Chemical Society of Japan, CSJ Presentation Award 2008 for Industries
The Chemical Society of Japan the 88th Annual Meeting
(March 2008, Tokyo)
(4) AsiaNANO2006 Best Poster Award
Asian Conference on Nanoscience and Nanotechnology 2006 (AsiaNANO2006)
(November 2006, Busan, Korea)
(5) ICSM04 Young Scientist Award
International Conference on Science and Technology of Synthetic Metals (ICSM2004)
(July 2004, Wollongong, Australia)
Patents
(1) 極小ワイヤー状分子集合体及びその製造方法 JP Patent 5527683
発明者：長谷川裕之
特許権者：国立研究開発法人科学技術振興機構 登録日： 平成２６年４月２５日
(2) 導電性ナノワイヤによる磁気スイッチング素子 JP Patent 5476560
発明者：長谷川裕之，大友明，松田真生，田島裕之
特許権者：国立研究開発法人情報通信研究機構 登録日： 平成２６年２月２１日
(3) 非導電性ナノワイヤー及びその製造方法 JP Patent 5453628
発明者： 長谷川裕之，野口裕，久保田徹，益子信郎
特許権者： 国立研究開発法人情報通信研究機構 登録日： 平成２６年１月１７日
(4) 導電性ナノワイヤーの製造方法 JP Patent 5322012
発明者：長谷川裕之，久保田徹，益子信郎
特許権者：国立研究開発法人情報通信研究機構 登録日：平成２５年７月２６日
(5) 導電性ナノワイヤーを用いたトランジスタ JP Patent 5008048
発明者：長谷川裕之，久保田徹，益子信郎
特許権者：独立行政法人情報通信研究機構 登録日：平成２４年６月８日
(6) 非導電性ナノワイヤー及びその製造方法 JP Patent 4853859
発明者： 長谷川裕之，野口裕，久保田徹，益子信郎
特許権者： 独立行政法人情報通信研究機構 登録日： 平成２３年１１月４日
(7) 導電性ナノワイヤーの製造装置および製造方法 JP Patent 4691648
発明者： 長谷川裕之，久保田徹，益子信郎
特許権者： 独立行政法人情報通信研究機構 登録日： 平成２３年３月４日
(8) Production device and production method for conductive nano-wire
US Patent US7,918,982
H. Hasegawa, T. Kubota, S. Mashiko
National Institute of Information and Communications Technology, April 5, 2011
(9) Production device and production method for conductive nano-wire
US Patent US7,351,313
H. Hasegawa, T. Kubota, S. Mashiko
National Institute of Information and Communications Technology, April 1, 2008