Development of sulfur-containing functional materials: pi-extended TTF and NIR electrochromism
| Project/Area Number |
26620167
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Organic and hybrid materials
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| Research Institution | Nara Institute of Science and Technology |
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Principal Investigator |
YAMADA Hiroko 奈良先端科学技術大学院大学, 物質創成科学研究科, 教授 (20372724)
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| Co-Investigator(Renkei-kenkyūsha) |
ARATANI Naoki 奈良先端科学技術大学院大学, 物質創成科学研究科, 准教授 (60372562)
KUZUHARA Daiki 岩手大学, 理工学部物理・材料理工学科, 助教 (00583717)
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| Research Collaborator |
Briseno Alejandro Lopez University of Massachusetts, Associate Professor
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 機能材料 / 有機電子材料 / エレクトロクロミズム / テトラチアフルバレン / 芳香族化合物 / アセン / 前駆体 |
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| Outline of Final Research Achievements |
To develop new organic electronic materials, tetracene-fused TTF (DT-TTF) and naphthalene-fuzed TTF bisimide (DNTTF-Im) derivatives were prepared. The difference in the crystal packing structures of tetraphenyl-substituted DT-TTF, showing polymorphism, results in a variety of intermolecular electronic coupling pattern. Butyl and hexyl-substituted DNTTF-Im showed the hole mobility of 10-1 cm2 V-1 s-1 as bottom-gate-top-contact organic field effect transistors. The electronic properties and optical properties were also investigated by UV-vis absorption spectra, ESR, X-ray crystallographic analysis, and DFT calculations. To investigate the electrochromic property, ditianonacene was also prepared. two electron oxidation of ditianonacene gave tetracene radical cation dimer, while tianthrene gave anthracene-like electronic structure by two-electron oxidation.
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Report
(4 results)
Research Products
(14 results)
