舟橋 正浩

J-GLOBALへ         更新日: 18/10/03 17:55
 
アバター
研究者氏名
舟橋 正浩
 
フナハシ マサヒロ
URL
http://www.eng.kagawa-u.ac.jp/~m-funa/Funahashi_2010_Top.html
所属
香川大学
部署
工学部
職名
教授
学位
博士(工学)(東京工業大学), 修士(理学)(東京大学)

プロフィール

1987年3月 甲陽学院高等学校卒業
1991年3月 東京大学理学部化学科卒業 (指導教官 奈良坂紘一教授)
1993年3月 東京大学大学院理学系研究科化学専攻修士課程修了(指導教官 奈良坂紘一教授)
1994年3月 東京大学大学院理学系研究科化学専攻博士課程中退(指導教官 奈良坂紘一教授)
1994年4月 東京工業大学工学部付属像情報工学研究施設 助手(半那純一教授)
1999年6月 博士(工学):論文博士(東京工業大学)
2000年4月 東京工業大学大学院理工学研究科付属像情報工学研究施設 助手
2003年9月~2005年3月 東京高等工業専門学校物質工学科 非常勤講師兼任
2005年3月 独立行政法人産業技術総合研究所ナノテクノロジー研究部門
      分子スマートシステムグループ 研究員(玉置信之グループリーダー)
2007年2月 東京大学大学院工学系研究科化学生命工学専攻 助教授(加藤隆史教授)
2007年4月 東京大学大学院工学系研究科化学生命工学専攻 准教授
2009年4月 名古屋大学工学部応用化学科 非常勤講師(兼任)
2010年4月 香川大学工学部材料創造工学科 教授
2012年1月 東京工業大学資源化学研究所非常勤講師
2014年10月 九州大学先導物質科学研究所非常勤講師、九州工業大学工学部非常勤講師
        

研究分野

 
 

経歴

 
1994年
 - 
2000年
 東京工業大学工学部付属像情報工学研究施設, 助手
 
2000年
 - 
2005年
 東京工業大学大学院理工学研究科付属像情報工学研究施設, 助手
 
2003年
 - 
2005年
 国立東京工業高等専門学校, 非常勤講師
 
2005年
 - 
2007年
 産業技術総合研究所ナノテクノロジー研究部門, 研究員
 
2007年
   
 
 東京大学大学院工学系研究科化学生命工学専攻, 助教授
 

学歴

 
 
 - 
1994年
東京大学 化学研究科 化学専攻
 
 
 - 
1991年
東京大学 理学部 化学科
 

委員歴

 
1998年
 - 
1999年
応用物理学会  分科会幹事
 
2000年
 - 
2001年
日本液晶学会  フォーラム幹事
 
2013年9月
 - 
2015年9月
日本液晶学会  理事
 
2013年4月
 - 
現在
日本化学会  香川県代表正会員
 
2014年4月
 - 
現在
高分子学会超分子研究会  運営委員
 

受賞

 
2017年9月
高分子学会広報委員会 高分子学会広報委員会パブリシティー賞
 
2015年9月
日本液晶学会 論文賞A部門
 
2014年9月
日本液晶学会 論文賞B部門
 
2008年9月
高分子学会 日立化成賞
 
2000年
第2回日本液晶学会賞 奨励賞
 
1997年
応用物理学会第1回講演奨励賞
 
2017年
16th International Conference on Ferroelectric Liquid Crystals Best Poster Award
 
2017年
高分子学会広報委員会パブリシティー賞
 
2017年
液晶化学研究会シンポジウム 優秀ポスター賞
 
2016年
International Meeting on Information Displays Best Poster Award (指導学生の受賞)
 

論文

 
Kato Takashi, Yoshio Masafumi, Ichikawa Takahiro, Soberats Bartolome, Ohno Hiroyuki, Funahashi Masahiro
NATURE REVIEWS MATERIALS   2(4)    2017年4月   [査読有り]
Funatsu Yusuke, Sonoda Akinari, Funahashi Masahiro
JOURNAL OF MATERIALS CHEMISTRY C   3(9) 1982-1993   2015年   [査読有り]
Nuita Midori, Sakuda Junji, Hirai Yuki, Funahashi Masahiro, Kato Takashi
CHEMISTRY LETTERS   40(4) 412-413   2011年4月   [査読有り]

Misc

 
Unique Superparamagnetic-like Behavior Observed in Non-π-delocalized Nitroxide Diradical Compounds Showing Discotic Liquid Crystalline Phase
Y. Takemoto, E. Zaytseva, K. Suzuki, N. Yoshioka, Y. Takanishi, M. Funahashi, Y. Uchida, T. Akita, J. Park, D. G. Mazhukin, S.Shimono, H. Takahashi, J. Yamauchi, R. Tamura
Chemistry - A European Journal   24 accepcted   2018年   [査読有り]
T. Sakata, M. Suzuki, T. Yamamoto, S. Nakanishi, M. Funahashi, N. Tsurumachi
Physical Review E   96    2017年10月
© 2017 American Physical Society. We investigated the optical transmission properties of one-dimensional photonic crystal (1D-PC) microcavity structures containing the liquid-crystalline (LC) perylene tetracarboxylic bisimide (PTCBI) derivative. W...
Atsushi Seki, Masahiro Funahashi, Masahiro Funahashi
Organic Electronics: physics, materials, applications   62 311-319   2018年11月
© 2018 Elsevier B.V. We have previously reported a chiral photovoltaic (CPV) effect in a ferroelectric chiral smectic C (SmC*) phase of π-conjugated liquid crystals. This CPV effect is caused by the internal electric field originated from spontane...
Transport of ions and electrons in nanostructured liquid crystals
T. Kato, M. Yoshio, T. Ichikawa, B. Soberats, H. Ohno, M. Funahashi
Nature Reviews Materials   2 1701   2017年3月   [査読有り][依頼有り]
Ryutaro Yamaoka, Masahiro Funahashi
ChemistrySelect   2 11934-11941   2017年1月
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Novel liquid-crystalline (LC) nickel phthalocyanine (Ni-Pc) complexes bearing eight oligosiloxane moieties such as disiloxane and trisiloxane were synthesized and their liquid-crystalline propert...
Masahiro Funahashi
Polymer Journal   49(1) 83-83   2017年1月
© 2017 The Society of Polymer Science, Japan (SPSJ) All rights reserved.Unlike conventional liquid crystals bearing alkyl chains, perylene tetracarboxylic bisimide (PTCBI) derivatives bearing oligosiloxane moieties were synthesized. The oligosilox...
Atsushi Seki, Yusuke Funatsu, Masahiro Funahashi
Physical Chemistry Chemical Physics   19 16446-16455   2017年1月
© the Owner Societies 2017. (S)- and (R)-forms of chiral π-conjugated ferroelectric liquid crystals were synthesized. The dielectric properties in the ferroelectric liquid-crystalline (FLC) phases were evaluated using the Sawyer-Tower method. Spon...
Masahiro Funahashi, Nozomi Takeuchi, Akinari Sonoda
RSC Advances   6(22) 18703-18710   2016年1月
© The Royal Society of Chemistry 2016. Mesomorphic and electron transport properties are compared for liquid-crystalline (LC) perylene tetracarboxylic bisimide (PTCBI) derivatives bearing linear disiloxane and trisiloxane chains, as well as bis(tr...
Kaede Takenami, Shinobu Uemura, Masahiro Funahashi
RSC Advances   6(7) 5474-5484   2016年1月
© The Royal Society of Chemistry 2016. A perylene tetracarboxylic bisimide (PTCBI) derivative bearing four cyclotetrasiloxane rings that forms a columnar phase at room temperature despite the presence of the bulky cyclotetrasiloxane rings was prep...
Atsushi Seki, Masahiro Funahashi
Chemistry Letters   45(6) 618-618   2016年1月
© 2016 The Chemical Society of Japan.Photovoltaic effects in ferroelectrics have attracted much attention due to their potential of generating a large open-circuit voltage. Recently, we focus on an anomalous photovoltaic effect in ferroelectric li...
Atsushi Seki, Masahiro Funahashi
Heterocycles   92(1) 30-30   2016年1月
© 2016 The Japan Institute of Heterocyclic Chemistry. Heteroaromatic skeletons are important functional units for optic and electronic materials. For the construction of novel functional soft matter, the self-assembled system utilizing the heteroa...
Taichi Hamamoto, Masahiro Funahashi
Journal of Materials Chemistry C   3 6891-6900   2015年7月
© The Royal Society of Chemistry. A dimer bearing two phenylterthiophene parts linked by a chiral moiety with a minimized molecular volume has been synthesized. This chiral dimer exhibits a chiral nematic phase and its helical structure can be fix...
Yusuke Funatsu, Akinari Sonoda, Masahiro Funahashi
Journal of Materials Chemistry C   3 1982-1993   2015年3月
© 2015 The Royal Society of Chemistry. Ferroelectric liquid-crystalline phenylterthiophene derivatives bearing a decenyl group, disiloxane chain, and cyclotetrasiloxane ring were synthesized. These compounds exhibited a chiral smectic C (SmC∗) pha...
Masahiro Funahashi, Takashi Kato
Liquid Crystals   42(5/6) 909-917   2015年1月
© 2015 Taylor & Francis. It is fundamentally important to study the relationships between structures and properties of liquid crystals. Professor G.W. Gray developed new rod-like nematic liquid crystals, 4-alkyl- and 4-alkoxy-4ʹ-cyanobiphenyls, wh...
Mizuho Kondo, Yukihiro Inoue, Yuki Koeduka, Masahiro Funahashi, Akira Heya, Naoto Matsuo, Nobuhiro Kawatsuki
Chemistry Letters   44(7) 1010-1012   2015年1月
© 2015 The Chemical Society of Japan. Two types of phenylenevinylene terthiophene with and without cyano side substitution were synthesized to investigate the effect of the molecular structure on optoelectronic properties. The oligothiophene with ...
M. Funahashi
Journal of Materials Chemistry C   2 7451-7459   2014年9月
In contrast to solid-state organic semiconductors, superstructures can be constructed in liquid-crystalline (LC) phases, using chirality, hybridization with nanofibers, and nanosegregation. Chiral LC molecules form LC phases with helical structure...
Masahiro Funahashi, Akinari Sonoda
Physical Chemistry Chemical Physics   16(17) 7754-7763   2014年5月
Electron transport characteristics in nanosegregated columnar phases of perylene tetracarboxylic bisimide (PTCBI) derivatives bearing oligosiloxane chains are studied over wide temperature ranges using a time-of-flight (TOF) method. In the ordered...
Masahiro Funahashi, Yusuke Funatsu, Kaede Takenami, Kunihiro Seike, Akinari Sonoda
21st International Display Workshops 2014, IDW 2014   1 56-59   2014年1月
© 2014 ITE and SID. In contrast to conventional liquid crystalline semiconductors bearing linear alkyl chains, we have synthesized π-conjugated liquid crystals bearing cyclotetrasiloxane rings. Their thin films produced by a spin-coating method ca...
Masahiro Funahashi
Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry   72(9) 1006-1017   2014年1月
Liquid-crystalline semiconductors exhibit good carrier transport properties as well as solution-processability. The applications to field-effect transistors, light-emitting diodes, and solar cells have been studied. Liquid-crystalline perylene tet...
Masato Mitani, Shogo Yamane, Masafumi Yoshio, Masahiro Funahashi, Masahiro Funahashi, Takashi Kato
Molecular Crystals and Liquid Crystals   594 112-121   2014年5月
Copyright © Taylor & Francis Group, LLC. 5,5′-Bis(2-phenylethynyl)-2,2′-bithiophene derivative 1 containing dendritic moieties linked through amide groups was synthesized. Compound 1 exhibits a rectangular columnar phase on slow cooling from the i...
Masahiro Funahashi, Mika Yamaoka, Kaede Takenami, Akinari Sonoda
Journal of Materials Chemistry C   1(47) 7872-7878   2013年12月
Liquid-crystalline perylene tetracarboxylic bisimide derivatives bearing heptamethylcyclotetrasiloxane moieties have been synthesized. Compound 2 bearing four heptamethylcyclotetrasiloxane moieties exhibits a rectangular columnar phase at room tem...
Yuna Kim, Masahiro Funahashi, Nobuyuki Tamaoki
RSC Advances   4(105) 60511-60518   2014年1月
© The Royal Society of Chemistry. We synthesized novel liquid crystalline semiconductors bearing an extended π-conjugated mesogen based on thieno[3,2-b]thiophene, which exhibit high solubility and low phase transition temperature. In particular, l...
Masahiro Funahashi, Akinari Sonoda
Dalton Transactions   42(45) 15987-15994   2013年12月
A liquid-crystalline (LC) perylene tetracarboxylic bisimide (PTCBI) derivative bearing a triethylene oxide chain as well as two pentamethyldisiloxane chains was synthesized. This compound exhibits an ordered lamellar phase at room temperature, and...
Masahiro Funahashi, Tomohiko Ishii, Akinari Sonoda
ChemPhysChem   14(12) 2750-2758   2013年8月
A liquid-crystalline (LC) phenylterthiophene derivative, which exhibited an ordered smectic phase at room temperature, was purified by vacuum sublimation under a flow of nitrogen. During the sublimation process, thin plates with sizes of 1 mm grew...
Masahiro Funahashi, Yusuke Funatsu, Tomohiko Ishii, Akinari Sonoda
Proceedings of the International Display Workshops   1 40-43   2013年1月
© 2013 ITE and SID. The carrier mobilities of liquid crystalline semiconductors exceed 0.1 cm 2 V 1 s -1 and they are comparable to those of molecular crystals. In this study, the hole transport characteristic in the ordered smectic phase of a 2-p...
Masahiro Funahashi, Akinari Sonoda
Journal of Materials Chemistry   22(48) 25190-25197   2012年12月
A liquid-crystalline (LC) semiconductor based on perylene tetracarboxylic bisimide (PTCBI) bearing four 1,1,1,3,3-pentamethyldisiloxane chains was synthesized. This LC PTCBI derivative exhibits ordered columnar phases and the low temperature colum...
Masahiro Funahashi
Proceedings of SPIE - The International Society for Optical Engineering   8475    2012年12月
Conventional liquid-crystalline (LC) semiconductors have been molecules consisting of a π-conjugated moiety and alkyl chains. For example, phenylterthiophene derivatives bearing alkyl chains exhibit ordered smectic phase at room temperature and ar...
M. Funahashi
Proceedings of the International Display Workshops   1 17-20   2012年12月
Conventional liquid-crystalline (LC) semiconductors have been molecules consisting of a π-conjugated moiety and alkyl chains. In this paper, we report a molecular design of LC electronic materials based on nanosegregation. Electrochromic LC molecu...
Masahiro Funahashi, Akinari Sonoda
Organic Electronics: physics, materials, applications   13(9) 1633-1640   2012年9月
Liquid-crystalline perylene tetracarboxylic acid bisimide derivatives 1 and 2 bearing 1,1,1,2,2,3,3-heptamethyltrisiloxane chains at the end of alkyl side-chains have been synthesized. Compound 1 having four trisiloxane chains exhibits a hexagonal...
Masahiro Funahashi, Nozomi Takeuchi, Naoyuki Tomita, Tomohiko Ishii, Akinari Sonoda
Proceedings of the International Display Workshops   1 553-556   2011年12月
In this study, we designed and synthesized n-type perylene tetracarboxylic bisimide (PTCBI) and p-type phthalocyanine derivatives bearing oligosiloxane side chains. These compounds exhibit columnar phases at room temperature. Moreover, because of ...
Masahiro Funahashi, Fapei Zhang, Nobuyuki Tamaoki
IEICE Transactions on Electronics   E94-C(11) 1720-1726   2011年11月
Thin-film transistors based on Liquid-crystalline phenylterthiophenes, 3-TTPPh-5 and 3-TTPPhF4-6 are fabricated with a spincoating method. The devices exhibit p-type operation with the mobility on the order of 10 -2 cm 2V -1s -1. The field-effect ...
Masahiro Funahashi, Takashi Kato
Kobunshi   60 463-464   2011年7月
We have developed new electronic materials forming nanosegregated structures in the liquid-crystalline (LC) phases. Liquid crystals bearing π-conjugated and ionic moieties exhibit electrochromism in the liquid crystal phase without electrolyte sol...
Aya Matsui, Masahiro Funahashi, Toru Tsuji, Takashi Kato
Chemistry - A European Journal   16(45) 13465-13472   2010年12月
Side-chain liquid-crystalline siloxane polymers bearing terthiophene moieties as mesogenic pendant groups have been synthesized. An alkenylterthiophene derivative was treated with poly(hydrogenmethylsiloxane) and poly(dimethylsiloxane-co-hydrogenm...
Masahiro Funahashi, Fapei Zhang, Nobuyuki Tamaoki
IDW'10 - Proceedings of the 17th International Display Workshops   2 1705-1708   2010年12月
Thin-film transistors based on Liquid-crystalline phenylterthiophene, 3-TTP-Ph-5 were fabricated with a solution-shared deposition method. The transistors on Si/SiO 2 substrates exhibit the field-effect mobility of the hole reached 8×10 -2 cm 2V -...
Sanami Yazaki, Masahiro Funahashi, Junko Kagimoto, Hiroyuki Ohno, Takashi Kato
Journal of the American Chemical Society   132(22) 7702-7708   2010年6月
New molecular materials combining ionic and electronic functions have been prepared by using liquid crystals consisting of terthiophene-based mesogens and terminal imidazolium groups. These liquid crystals show thermotropic smectic A phases. Nanos...
Yoshiko Shoji, Masafumi Yoshio, Takuma Yasuda, Masahiro Funahashi, Takashi Kato
Journal of Materials Chemistry   20(1) 173-179   2010年3月
Aligned self-assembled fibers have been obtained for a phenylbithiophene derivative with a laterally fluorinated phenylene group by the application of electric fields. These fibrous aggregates exhibit photoconductive properties due to the stacking...
Fapei Zhang, Masahiro Funahashi, Nobuyuki Tamaoki
Organic Electronics: physics, materials, applications   11(3) 363-368   2010年3月
We have fabricated the flexible field-effect transistors based on the liquid crystalline phenylterthiophene derivative via a solution process. A dielectric layer of polyvinyl alcohol (PVA) are deposited on a polyimide sheet substrate by a spin-coa...
Masahiro Funahashi
Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers   63 1374-1375   2009年12月
Masahiro Funahashi
Polymer Journal   41(6) 459-469   2009年8月
Carrier transport in liquid-crystal phases, design of liquid-crystalline semiconductors with high carrier mobilities, and their application to field-effect transistors are reviewed. High carrier mobility has been observed in the smectic phases of ...
Makoto Yoneya, Makoto Yoneya, Masahiro Funahashi, Hiroshi Yokoyama, Hiroshi Yokoyama
Proceedings of SPIE - The International Society for Optical Engineering   7232 1-72320   2009年4月
In this study, the structure and dynamics of a liquid crystalline semiconductor dioctylterthiophene system, 8-TTP-8, were examined by molecular dynamics simulations. We especially focus on the melting transition from the crystal to the liquid crys...
Takuma Yasuda, Hirotaka Ooi, Jun Morita, Yusuke Akama, Kiyoshi Minoura, Masahiro Funahashi, Takeshi Shimomura, Takashi Kato
Advanced Functional Materials   19(3) 411-419   2009年2月
A series of liquid-crystalline (LC) π-conjugated oligothiophenes bearing three or two alkoxy chains at their extremities has been designed and synthesized. These polycatenar oligothiophenes form various LC nanostructures including smectic, columna...
Fapei Zhang, Masahiro Funahashi, Nobuyuki Tamaoki
Organic Electronics: physics, materials, applications   10(1) 73-84   2009年2月
The authors fabricated thin films by solution processes using liquid-crystalline (LC) semiconductors, 5-alkyl-5''-(4-hexyltetrafluorophenyl)-2,2':5',2''-terthiophene (2-5). Films of 5-propyl-5''-(4-hexyltetrafluorophenyl)-2,2':5',2''-terthiophene ...
Fapei Zhang, Masahiro Funahashi, Nobuyuki Tamaoki
IDW '08 - Proceedings of the 15th International Display Workshops   2 1495-1498   2008年12月
Thin-film transistors based on Liquid crystalline oligothiophene derivatives were fabricated. The transistors with the high performance were produced by the simple solution process. When the surface of the gate dielectrics were treated with octatr...
Sanami Yazaki, Masahiro Funahashi, Takashi Kato
Journal of the American Chemical Society   130(40) 13206-13207   2008年10月
A new electrochromic molecule comprised of π-conjugated and ionic moieties has been designed and synthesized. It forms a nanosegregated smectic phase in which ion-conductive layers of imidazolium salts are located between hole transport layers of ...
Hiroshi Noguchi, Tsuyoshi Michinobu, Tsuyoshi Michinobu, Nozomu Fujii, Masahiro Funahashi, Masahiro Funahashi, Masatoshi Tokita, Junji Watanabe, Kiyotaka Shigehara, Kiyotaka Shigehara
Journal of Polymer Science, Part A: Polymer Chemistry   46(15) 5101-5114   2008年8月
Cyanotolane or fluorotolane mesogens were for the first time introduced into the fumarate monomer under basic conditions. All fumarate monomers undergo radical polymerization in benzene in the presence of dimethyl 2,2′-azobis(isobutyrate) as an in...
Takashi Nakanishi, Takashi Nakanishi, Takashi Nakanishi, Yanfei Shen, Jiaobing Wang, Shiki Yagai, Shiki Yagai, Masahiro Funahashi, Takashi Kato, Paulo Fernandes, Helmuth Möhwald, Dirk G. Kurth, Dirk G. Kurth
Journal of the American Chemical Society   130(29) 9236-9237   2008年7月
Fullerenes, C60, modified with long alkyl chains form long-range ordered lamellar mesophases permitting a high C60 content. The mesomorphic fullerenes feature reversible electrochemistry and a comparably high electron carrier mobility making them ...
Masahiro Funahashi, Fapei Zhang, Nobuyuki Tamaoki, Jun Ichi Hanna
ChemPhysChem   9(10) 1465-1473   2008年7月
5-Hexyl-5″-hexynyl-2,2′:5′,2″-terthiophene exhibits the smectic E phase below 200°C and does not crystallize when it is cooled to -100°C. Between 200 and -100°C, non-dispersive transport is observed for holes and electrons with time-of-flight spec...
M. Funahashi, F. Zhang, F. Zhang, N. Tamaoki
IDW '07 - Proceedings of the 14th International Display Workshops   2 459-462   2007年12月
2-Alkyl-5"-(p-alkylphenyl)terthiophene derivatives were synthesized and around room temperature, they exhibited highly ordered smectic phases in which fast electronic carrier transport is possible. This compound was applied to thin film transistor...
V. Ajay Mallia, Masahiro Funahashi, Nobuyuki Tamaoki
Journal of Physical Organic Chemistry   20(11) 878-883   2007年11月
4-Heptylazobenzene (HAB) has been covalently attached to cholesterol (Ch) by varying the methylene spacers and to cyanobiphenyl (CB) moiety with an octyl methylene linkage. Enhancement of short-range translational correlations in the chiral nemati...
Masahiro Funahashi, Harutoki Shimura, Masafumi Yoshio, Takashi Kato
Structure and Bonding   128 151-179   2007年8月
Liquid-crystalline (LC) polymers that exhibit ionic or electronic conduction are described. Anisotropic and efficient transportation of electrons and ions is expected for these materials. The ordered LC nanostructures of LC polymers having ion- or...
Fapei Zhang, Masahiro Funahashi, Nobuyuki Tamaoki
Applied Physics Letters   91(6) 63515   2007年8月
The authors have prepared liquid crystalline (LC) semiconducting thin films with smectic phases at room temperature from 5-propyl- 5″ -(4-pentylphenyl)- 2, 2′: 5′, 2″ -terthiophene (3-TTPPh-5) by spin-coating process. The films consist of large-si...
Takashi Kamei, Masabumi Kudo, Haruhisa Akiyama, Momoyo Wada, JuN'Ichi Nagasawa, Masahiro Funahashi, Nobuyuki Tamaoki, Taro Q P Uyeda
European Journal of Organic Chemistry   3053   2007年7月
Takashi Kamei, Masabumi Kudo, Haruhisa Akiyama, Momoyo Wada, Jun'ichi Nagasawa, Masahiro Funahashi, Nobuyuki Tamaoki, Taro Q P Uyeda
European Journal of Organic Chemistry   2007(11) 1846-1853   2007年6月
We demonstrate significant visible-light photoresponsivity in a synthesized oligonucleotide containing a built-in pseudonucleotide possessing a 4-(dimethylarnino)azobenzene (4-DMAzo) side chain. In dry DMSO as solvent, two clearly distinguishable ...
Masahiro Funahashi, Nobuyuki Tamaoki
Chemistry of Materials   19(3) 608-617   2007年2月
We have synthesized three phenylquaterthiophene derivatives (liquid-crystalline semiconductors that exhibit a chiral nematic phase) and investigated their carrier transport characteristics in the chiral nematic phases with the time-of-flight techn...
Masahiro Funahashi, Fapei Zhang, Nobuyuki Tamaoki
Advanced Materials   19(3) 353-358   2007年2月
A solution-processable smectic liquid-crystalline semiconductor with fast ambipolar carrier transport for organic field-effect-transistors was synthesized. The homogeneous smectic thin films of liquid-crystalline semiconductors were fabricated by ...
Masahiro Funahashi, Masahiro Funahashi, Nobuyuki Tamaoki
Molecular Crystals and Liquid Crystals   475 123-135   2007年1月
We have synthesized 2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2'''- propyl-2:5'-2':5''-2'':5'''-quaterthiophene (10), a liquid crystalline semiconductor that exhibits a chiral nematic phase, and used the time-of-flight technique to determine i...
M. Funahashi, F. Zhang, N. Tamaoki
IDW '06 - Proceedings of the 13th International Display Workshops   1 19-22   2006年12月
asymmetrically substituted oligothiophene derivatives were synthesized and around room temperature, they exhibited highly ordered smectic phases in which fast electronic carrier transport. In particular high electron mobility exceeding over 0.2 cm...
Masahiro Funahashi, Masahiro Funahashi
Molecular Crystals and Liquid Crystals   458 3-10   2006年11月
Liquid crystalline semiconductors have been recognized as one of promising materials potential for opto-electronics applications. However increase in carrier mobility as well as extension of mesomorphic temperature range is indispensable for pract...
Masabumi Takahashi, Kentaro Masui, Hiroki Sekiguchi, Nobuhiko Kobayashi, Atsunori Mori, Atsunori Mori, Masahiro Funahashi, Nobuyuki Tamaoki
Journal of the American Chemical Society   128(33) 10930-10933   2006年8月
Synthesis of oligothiophenes of well-defined structures that possess 2-8 thiophene units is performed with a new synthetic strategy involving C-H homocoupling of bromothiophenes and cross-coupling with organostannanes. Tolerance of the carbon-brom...
Tsuyoshi Michinobu, Tsuyoshi Michinobu, Takashi Nakanishi, Jonathan P. Hill, Masahiro Funahashi, Katsuhiko Ariga
Journal of the American Chemical Society   128(32) 10384-10385   2006年8月
Room temperature liquid C 60 derivatives bearing a 2,4,6-trialkyloxyphenyl branch show a dramatic decrease in viscosity with an increase in the length of the alkyl chains. This feature, when combined with electrochemical activities similar to thos...
Masahiro Funahashi, Nobuyuki Tamaoki
ChemPhysChem   7(6) 1193-1197   2006年6月
(Figure Presented) Carrier transport characteristics in the chiral nematic phase of 2-[5-(4-[(S)-2-methylbutoxy]phenyl)-3-methyl]-2′″-propyl-2: 5′-2′:5″-2″:5′″-quaterthiophene, a liquid-crystalline semiconductor (see picture), are determined with ...
Masahiro Funahashi, Masahiro Funahashi, Jun Ichi Hanna
Molecular Crystals and Liquid Crystals   436 1179-1189   2005年12月
Smectic semiconductors with high carrier mobility were designed and synthesized. The hole mobility of 3-TTP-yne-4 and 3-QTP-yne-3 at room temperature was 0.06cm2/Vs and 0.1cm2/Vs, respectively. They exhibit highly ordered smectic phases around roo...
Yuichiro Haramoto, Yuichiro Haramoto, Yuko Kawada, Atushi Mochizuki, Masato Nanasawa, Seiji Ujiie, Masahiro Funahashi, Kohki Hiroshima, Takamasa Kato
Liquid Crystals   32(7) 909-912   2005年7月
We report a new possibility for liquid crystalline organic semiconductors. These materials exhibit smectic liquid crystalline phases, in which the molecules assume a smectic molecular order by self-assembly. Because of the strong dispersion force ...
Masahiro Funahashi, Jun Ichi Hanna
Advanced Materials   17(5) 594-598   2005年3月
The thiophene-based smectic liquid crystals were examined for their high carrier mobility at ambient temperatures. Asymmetrically substituted terthiophene and quaterthiophene derivatives, were synthesized. The charge-carrier mobility was determine...
Naoki Yoshimoto, Masahiro Funahashi, Jun Ichi Hanna
Molecular Crystals and Liquid Crystals   409 493-504   2004年12月
We have fabricated a novel charge carrier transport material composed of a liquid crystalline molecule and a cross-linked polymer. This composite system exhibited high hole mobility comparable with that of the pure liquid crystalline material. The...
Masahiro Funahashi, Jun Ichi Hanna
Molecular Crystals and Liquid Crystals   410 529-540   2004年12月
We synthesized dialkylterthiophene derivatives ω-substituted with cyclohexylethyl moiety, which exhibit smectic mesophases at room temperature, and investigated their charge carrier transport properties. In particular, transpentylcyclohexylethyl-p...
Masahiro Funahashi, Jun Ichi Hanna
Chemical Physics Letters   397(4/6) 319-323   2004年10月
The impurity effect on the charge carrier transport in a smectic liquid crystal was investigated by time-of-flight experiments with a model system of a 2-phenylnaphthalene derivative of 2-(4′-octylpheny)-6-dodecyloxynaphthalene (8-PNP-O12) and a n...
Jun Ichi Hanna, Masahiro Funahashi
Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry   62(8) 799-810   2004年8月
In these ten years, two separate groups including the author's discovered the electronic conduction in liquid crystals, whose electrical conduction had been believed to be ionic for a long time. Since then, we have synthesized model compounds and ...
Akira Ohno, Akira Ohno, Kensuke Kurotaki, Akihide Haruyama, Masahiro Funahashi, Jun Ichi Hanna, Jun Ichi Hanna
Proceedings of SPIE - The International Society for Optical Engineering   4991 274-281   2003年11月
We have investigated the hole transport in smectic mesophases by Monte Carlo simulation based on a two-dimensional hopping transport in Gaussian-distributed density of states and time-of-flight experiments. We found that their unique carrier trans...
Yasuo Toko, Masahiro Funahashi, Jun Ichi Hanna
Proceedings of SPIE - The International Society for Optical Engineering   4800 229-237   2002年12月
Electro-optical characteristics were studied on the organic semiconductor materials exhibiting molecular alignment based on molecular self-organization in their liquid crystal phases. It was confirmed that these organic semiconductor materials exh...
HARAMOTO Y, YAMADA T, NANASAWA M, FUNAHASHI M, HANNA J, UJIIE S
Liquid Crystals   29(8) 1109-1111   2002年8月
New conductive thermotropic liquid crystalline materials having a piperazine ring in the central core: 1-[4-(9-decenyloxy)phenyl]-4-alkylpiperazines (6) were synthesized. The mesomorphic behaviours of these compounds and their conductivity in the ...
Naoki Yoshimoto, Masahiro Funahashi, Jun Ichi Hanna
Materials Research Society Symposium - Proceedings   709 147-152   2002年1月
A novel composite system containing of liquid crystalline semiconductor and crosslinked polymer exhibited high hole mobilities with comparison of that of pure liquid crystalline molecules. The carrier transport properties were influenced by the po...
Hiroki Maeda, Masahiro Funahashi, Jun Ichi Hanna
Molecular Crystals and Liquid Crystals   366 2111-376   2001年12月
We have investigated the charge transport properties in smectic photoconductive liquid crystal of 2-phenylnaphthalene derivatives in focus on the electrical nature of the boundaries at the phase transition from liquid crystalline phase into the cr...
Takahiro Kamitani, Masahiro Funahashi, Jun Ichi Hanna
International Conference on Digital Printing Technologies   546-549   2001年12月
The impurity effect on the carrier transport in a 2-phenylnaphthalene derivative of 6-(4'-octylphenyl)- 2-dodecyloxynaphthlene (8-PNP-O12), which is a liquid crystalline photoconductor and we call Self-organizing Molecular Semiconductors (SOMS), w...
FUNAHASHI M, HANNA J
Molecular Crystals and Liquid Crystals   368 4071-4078   2001年12月
We have studied the carrier transport properties of the two series of smectic mesophases, from SmA to SmE phases, and from SmC to SmG phases in 2-pahenynaphthalene and terthiophene derivatives by time of flight measurements. We examine the experim...
Hiroki Maeda, Masahiro Funahashi, Jun Ichi Hanna
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals   346 183-192   2000年12月
Smectic mesophases in the calamitic liquid crystalline materials such as 2-phenylnaphthalene derivatives exhibit fast ambipolar carrier transport, whose mobility is up to 10-2 cm2/Vs. For these mesophases, we have investigated the effect of defect...
Masahiro Funahashi, Jun Ichi Hanna
International Conference on Digital Printing Technologies   461-466   2000年12月
The general features of electrical properties of a new class of organic photoconductors, i.e., photoconductive liquid crystals, to which we prefer "Self-organizing Molecular Semiconductors" as a conceptual name, are reviewed briefly. And in two se...
Hiroki Maeda, Masahiro Funahashi, Jun Ichi Hanna
Materials Research Society Symposium - Proceedings   598    2000年12月
Calamitic liquid crystalline photoconductors such as 2-(4′-octylphenyl)-6-butyloxynaphthalene (8-PNP-O4) and 2-(4′-octylphenyl)-6-dodecyloxynaphthalene (8-PNP-O12) exhibit fast ambipolar carrier transport in all the smectic mesophases up to 1.0×10...
Masahiro Funahashi, Jun Ichi Hanna
Yuki Gosei Kagaku Kyokaishi/Journal of Synthetic Organic Chemistry   58(9) 887-892   2000年9月
Recently, a new class of organic materials, i.e., self-organizing molecular semiconductors has been created. This materials exhibit self-organizing molecular alignment and excellent carrier transport properties compared with the conventional amorp...
Masahiro Funahashi, Jun Ichi Hanna
Applied Physics Letters   76(18) 2574-2576   2000年5月
Dialkylterthiphene derivatives exhibiting self-organization of molecular alignment were synthesized and their electrical properties were studied. It was found that these materials exhibited very fast electron transport in smectic mesophases as wel...
Hong Zhang, Masahiro Funahashi, Jun ichi Hanna
Proceedings of SPIE - The International Society for Optical Engineering   3939 126-134   2000年1月
The spectral sensitization and photosensitization efficiency of a liquid crystalline photoconductor, 2-(4′-octylphenyl)-6-dodecyloxy-naphthalene (8-PNP-O12) with C70 were investigated by steady-state and transient photocurrent measurements in term...
舟橋 正浩, 半那 純一
日本写真学会誌   63(2) 69-77   2000年
Masahiro Funahashi, Jun Ichi Hanna
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals   331 2369-2376   1999年12月
We have characterized carrier transport in mesophases of 2-phenyl-naphthalene derivatives by transient photocurrent measurements. In contrast to ionic conduction of isotropic and nematic (N) phase, electronic and ambipolar carrier transport was ob...
Hong Zhang, Hiroki Maeda, Masahiro Funahashi, Jun ich Hanna
Proceedings of SPIE - The International Society for Optical Engineering   3799 168-177   1999年12月
The photo-hole generation process in the smectic phases of a liquid crystalline photoconductor, 2-(4′-octylpheny)-6-dodecyoxylnaphthalene (8-PNP-O12) was investigated by using steady-state and transient photocurrent measurements. It was revealed t...
KOGO K, MAEDA H, KATO H, FUNAHASHI M, HANNA J
Applied Physics Letters   75(21) 3348-3350   1999年11月
An organic ferroelectric photoconductor, 2-[(S)-4-(6-methylheptyloxy)phenyl]-6-decylnaphthalene, was prepared and its photoconductive and ferroelectric behaviors were characterized by steady-state and transient electrical measurements. This materi...
Masahiro Funahashi, Jun Ichi Hanna
Applied Physics Letters   74(18) 2584-2586   1999年5月
The spectral photosensitization of a liquid crystalline photoconductor (8-PNP-O12) was investigated by doping the photoconductor with C70. Results showed that the doping prompted the photoconductor's liquid crystal cells to exhibit a photoresponse...
Masahiro Funahashi, Jun Ichi Hanna
Japanese Journal of Applied Physics, Part 2: Letters   38    1999年2月
Photoconductive anisotropy of a liquid crystalline photoconductor, 2-(4′-octylphenyl)-6-dodecyloxynaphthalene (8-PNP-O12) exhibiting smectic B (SmB) and smectic A (SmA) phases, was studied by steady-state and transient photocurrent measurements fo...
Nobuharu Iwasawa, Masahiro Funahashi, Satoshi Hayakawa, Taketo Ikeno, Koichi Narasaka
Bulletin of the Chemical Society of Japan   72(1) 85-97   1999年1月
Bicyclic cyclopropanols having an olefinic side chain are oxidized-with manganese(III) tris(pyridine-2-carboxylate) to generate cyclic β-keto radicals with ring-expansion. These cyclize intramolecularly, affording bicyclic radical intermediates. T...
Masahiro Funahashi, Jun Ichi Hanna
Japanese Journal of Applied Physics   38(2A) 132-135   1999年2月
Photoconductive anisotropy of a liquid crystalline photoconductor, 2-(4′-octylphenyl)-6-dodecyloxynaphthalene (8-PNP-O12) exhibiting smectic B (SmB) and smectic A (SmA) phases, was studied by steady-state and transient photocurrent measurements fo...
液晶性光伝導体における不純物の効果(II)
第60回応用物理学会学術講演会予稿集   1099   1999年
2-Phenylnaphthalene系液晶性半導体のSmE相における超高速両極性電荷
第60回応用物理学会学術講演会予稿集   1099   1999年
液晶性有機半導体の電荷輸送における分子向秩序の効果
113-116   1999年
ナフタレン系液晶性光伝導体スメクティックE相における高速両極性電荷輸送
1999年度日本写真学会年次大会講演要旨   65-66   1999年
液晶性半導体2.5-dialkyl-2.2 : 5,2-terthiophene誘導体の電荷輸送特性と電界発光素子への応用
1999年度日本液晶学会講演予稿集   350-351   1999年
液晶性有機半導体を用いる発光素子の可能性
液晶コンソーシアムセミナー1999   10   1999年
液晶性有機半導体の創製と電気伝導に関する研究
液晶   3(3) 329   1999年
Microsecond photo-responce in liquid crystalline photoconductor doped with C70 under illumination of visible light
Applied Physics Letters   75 2484-2486   1999年
Jun Ichi Hanna, Masahiro Funahashi
International Conference on Digital Printing Technologies   498-501   1998年12月
Carrier transport properties of a calamitic liquid crystalline photoconductor (Calamitic LCPC), 2-pheny-naphthalene derivatives were investigated by steady state and transient photocurrenl measurements. These materials exhibited calamitic mesophas...
KOGO K, GODA T, FUNAHASHI M, HANNA J
Applied Physics Letters   73(11) 1595-1597   1998年12月
Liquid crystal cells containing a homogeneously aligned calamitic liquid crystalline semiconductor, 2-(4-octylphenyl)-6-dodecyloxynaphthalene, doped with dyes such as 3-(2-benzothiazolyl)7-diethylaminocoumarin, emitted a visible light when a dc bi...
FUNAHASHI M, HANNA J
Applied Physcs Letters   73(25) 3733-3735   1998年12月
Ambipolar carrier transport properties in different phases of a liquid-crystalline photoconductor, 2-(4-octylphenyl)-6-n-butoxynaphthalene, were investigated by a time-of-flight technique. Carrier mobilities were increased stepwise when phase tran...

書籍等出版物

 
「エキゾチック自己組織化材料」研究グループ, 中西 尚志, 松浦 和則, 矢貝 史樹, 角五 彰, 岸村 顕広, 佐伯 昭紀, 竹岡 敬和, 内藤 昌信, 舟橋 正浩
フロンティア出版   2015年   ISBN:9784902410266
松浦 和則, 角五 彰, 岸村 顕広, 佐伯 昭紀, 竹岡 敬和, 内藤 昌信, 中西 尚志, 舟橋 正浩, 矢貝 史樹 (担当:共著)
講談社   2014年3月   ISBN:4061568027
内藤 裕義, 舟橋 正浩, 久保野 敦史 (担当:共著)
シーエムシー出版   2007年5月   ISBN:4882316757
液晶化学実験講座~基礎と計測~
国際文献社   2017年   
オリゴシロキサン鎖を活用した重合性ナノ相分離型液晶性半導体 中條善樹監修「元素ブロック材料の創出と応用展開」
シーエムシー出版   2016年   

講演・口頭発表等

 
オリゴシロキサン部位を有するフタロシアニン誘導体の凝集構造がキャリア輸送特性へ及ぼす影響
日本化学会第98春季年会   2018年   
Liquid-crystalline semiconductor based on chiral phenylterthiophene dimer bearing oligosiloxiane units at the terminal positions of the alkyl side chains
日本化学会第98春季年会   2018年   
Liquid Crystalline Semiconductors Based on Chiral Dimeric Oligo(p-Phenylene Vinylene) Units as a Fluorophore
日本化学会第98春季年会   2018年   
Bulk photovoltaic effect in π-conjugated ferroelectric liquid crystals based on an oligothiophene skeleton
16th International Conference On Ferroelectric Liquid Crystals   2017年   
Anisotropic Electrical Conductivity of Nanosegregated LC Thin Films of Polymerizable Perylene Bisimide Bearing a Triethylene Oxide Chain and Cyclotetrasiloxane Rings
IWD'17  THE 24TH INTERNATIONAL DISPLAY WORKSHOPS   2017年   

担当経験のある科目

 
 

Works

 
有機半導体の可溶化に関する研究
2013年
液晶性半導体に関する研究
2013年
液晶性有機物の電気的物性に関する研究
2010年
液晶性電子材料の合成と機能に関する研究
2010年

競争的資金等の研究課題

 
液晶性半導体の材料設計、電子・光物性
イオン性部位とπ電子共役系を有する液晶材料の開発
π電子共役系を有する液晶性高分子の合成と電子機能
液晶性半導体を用いた電子デバイスの作製と評価