2016 Fiscal Year Final Research Report
Organic transistors based on hydrogen-bond-functionalized organic semiconductors
| Project/Area Number |
15H06135
|
|---|
| Research Category |
Grant-in-Aid for Research Activity Start-up
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Functional solid state chemistry
|
|---|
| Research Institution | The University of Tokyo |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2015-08-28 – 2017-03-31
|
| 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 |
|---|
| 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.
|
| Free Research Field |
有機半導体と有機伝導体の合成と物性評価
|
