2010 Fiscal Year Final Research Report
Development of soluble organic semiconductors with self-assembling nature and their application to solution-processed OFETs
Project/Area Number |
20350088
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Functional materials/Devices
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Research Institution | Hiroshima University |
Principal Investigator |
TAKIMIYA Kazuo Hiroshima University, 大学院・工学研究院, 教授 (40263735)
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Co-Investigator(Renkei-kenkyūsha) |
MIYAZAKI Eigo 広島大学, 大学院・工学研究院, 助教 (00432683)
OSAKA Itaru 広島大学, 大学院・工学研究院, 助教 (80549791)
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Project Period (FY) |
2008 – 2010
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Keywords | 有機電子材料 / 素子 / 有機半導体 / 溶液プロセス / 自己組織化 / 有機トランジスタ / ヘテロアレン / 有機合成 |
Research Abstract |
The aim of this project is to develop soluble and self-assembling organic semiconductors by synthesizing new π extended molecules with long alkyl groups in their molecular long axis direction and to evaluate their molecular properties and their potential as solution-processable organic semiconductors. At the beginning of the project, five molecular systems were targeted ; benzoselenobenzoselenophene, bezodichalcogenophene, dinaphthothienothiophene, thiophene-annulated porphyrazine, thienoquinoidal molecules. The synthesis and evaluation of all these five systems have been successfully done. Furthermore, new systems, benzotrithiophene and four isomeric naphthodithiophenes, were also investigated by developing new synthetic methods suitable for these formally less-accessible or not synthesizable systems. By doing these materials developments, several impressive results were obtained, e.g., new materials enabling solution processed OFETs with mobility as high as 10cm^2/Vs and air-stable, solution-processable n-channel materials with mobility of 10^<-2>cm^2/Vs.
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[Journal Article] Dianthra[2,3-b:2',3'-f]thieno[3,2-b] thiophene (DATT) : Synthesis, Characterization, and FET Characteristics of New π-Extended Heteroarene with Eight Fused Aromatic Rings2011
Author(s)
K.Niimi, S.Shinamura, E.Miyazaki, I.Osaka, K.Takimiya
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Journal Title
J. Am. Chem. Soc. 133, in press
Peer Reviewed
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[Journal Article] Molecular Modification of 2,7-Diphenyl[1]benzothieno[3,2-b]ben zothiophene (DPh-BTBT) with Diarylamino Substituents : From Crystalline Order to Amorphous State in Evaporated Thin Films2009
Author(s)
T.Izawa, H.Mori, Y.Shinmura, M.Iwatani, E.Miyazaki, K.Takimiya, H.-W.Hung, M.Yahiro, C.Adachi
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Journal Title
Chem.Lett. 38
Pages: 420-421
Peer Reviewed
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[Remarks] ホームページ等