2014 Fiscal Year Final Research Report
Creation of Conjugated Organic and Polymer Nanofibers: High Conductivity to Super One
| Project/Area Number |
25620157
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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 | Tohoku University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
ONODERA Tsunenobu 東北大学, 多元物質科学研究所, 助教 (10533466)
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| Co-Investigator(Renkei-kenkyūsha) |
MITSUI Tadashi 独立研究開発法人物質・材料研究機構, 先端的共通技術部門, 主任研究員 (90343863)
WAKAYAMA Yutaka 独立研究開発法人物質・材料研究機構, MANA-ナノマテリアル分野, 主席研究員 (00354332)
TAKEDA Yoshihiko 独立研究開発法人物質・材料研究機構, 先端的共通技術部門, グループリーダー (90354357)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Keywords | ポリジアセチレン / ナノ結晶 / ナノファイバー / 再沈法 / 配向薄膜 / ドーピング / 導電性 / 超伝導体 |
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| Outline of Final Research Achievements |
Nanofibers (NFs) of amphiphilic diacetylene (Am-DA) and DA having carbazolyl moiety (Cz-DA) have been fabricated by using the reprecipitation method, and further solid-state polymerized to convert into polydiacetylene (PDA) NFs. The oriented thin films with highly optical quality have been obtained successfully in any case of PDA NFs, when so-called Tapered Cell process was improved.
It is possible to make a process of chemical doping, since hollowed structure exists inside Poly(Am-DA) NF from TEM observation. On the other hand, crystal structure has been partially broken down, due to extremely high rigidity, in the case of iodide doping for Poly(Cz-DA) NF, and the conductivity was measured less reproducibly and unstably in the oriented thin films composed of Poly(Cz-DA) NFs. In addition, the possibility of super conductive PDA NFs was discussed in detail together with Research Collaborators of NIMS.
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| Free Research Field |
光・電子機能性有機・高分子材料化学
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