| Project/Area Number |
15H06135
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| Research Category |
Grant-in-Aid for Research Activity Start-up
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| Allocation Type | Single-year Grants |
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| Research Field |
Functional solid state chemistry
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2015-08-28 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 有機トランジスタ / 有機半導体 / 有機伝導体 / 水素結合 / 結晶構造 |
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| Outline of Final Research Achievements |
New benzothienobenzothiophene (BTBT) derivatives tailored by incorporating two adjacent substituent groups having hydrogen-bonding ability at the 2,3- and 2,3,7,8-positions have been synthesized. The methoxy-substituted BTBT derivatives form a lamellar herringbone packing structure in the crystal, while the thin-film morphologies of each derivatives depend on the side-chain effect of the introduced methoxy groups and strongly influence the transistor properties.
In addition, the hydroxy-substituted BTBT derivative produces a charge-transfer salt, in which the introduced hydroxy groups form a hydrogen-bonded chain structure with counter anions. This unique structural feature effectively increases the dimensionality of the electronic structure, leading to the stabilization of metallic conducting behavior.
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