Synthesis, Properties, and Applications of Functional Nano-Sized Conjugated Moleculas

功能性纳米共轭分子的合成、性质及应用

• 批准号: 17205006
• 负责人: OTSUBO Tetsuo
• 金额: $ 29.62万
• 依托单位: Hiroshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17205006/
• 关键词: nano-sized molecules; functional molecules; molecular electronics; field-effect transisotrs; photovoltaic devices; light emitting devices; 機能分子; 巨大分子; ナノサイエンス

In order to develop novel nano-sized molecules showing distinguished functionalities, we focused on several new highly p-extended systems; they were carefully designed, selectively synthesized, and applied to various functional molecular-based devices such as photovoltaic cells, field-effect transistors, soluble organic semiconductors, light emitting diodes, molecular switches, functional dyes, and so on. Followings are major achievements in this project.1. Highly efficient light-condensing molecules based on polphyradines possessing condensed thiophenes; the new polphyradine derivatives that have the same electronic structure with phthalocyanines were developed. They have high solubility and capability of self-organization in the solid state.2. Application of long oligothiophenes to photovoltaic cells: oligothiophenes (tetramer, octamer, dodecamer) modified with a carbonic acid or a cyanopropanoic acid anchoring terminal were synthesized and tested as active dyes in the dye-sensitized … More solar cells (DSSCs). The DSSCs using the dodecamer modified with a cyanopropanoic acid anchor gave good photovoltaic conversion efficiency of 4.0% under the illumination of AM1.5 solar simulator.3. Self-assembling, solution prosessible organic semiconductors for high performance OFETs; we found that combination of large, rigid, and planer n-conjugated structures with long alkyl chains can give highly soluble and self-assembling organic semiconductors. With this approach, solution-processed OFETs with field-effect mobility as high as 2.7 cm^2/Vs were achieved.4. Functional dyes based on oligothionoquinoid molecules: dicyanomethylene-substituted oligothionoquinoids were successfully synthesized up to the hexamer. Depending on the length of the oligothionoquinoid chain, the absorption bands of the oligomers shift from UV (monomer) to near IR (tetramer) via visible regime (dimes and Mimes). Interestingly, pentamer and hexamer showed absorption bands in the visible regime again. These phenomena were experimentally and theoretically rationalized by incorporation of open-shell spices which have contribution of the "oligothiophene" structure rather than the "oligothionoquinoid" structure. Less

为了开发具有卓越功能的新型纳米分子，我们重点研究了几种新的高度 p 扩展系统；它们经过精心设计、选择性合成，并应用于各种功能性分子基器件，如光伏电池、场效应晶体管、可溶性有机半导体、发光二极管、分子开关、功能染料等。本项目的主要成果如下： 1．基于具有缩合噻吩的卟啉的高效聚光分子；开发了与酞菁具有相同电子结构的新型聚吡啶衍生物。它们具有高溶解度和固态自组织能力。 2．长低聚噻吩在光伏电池中的应用：合成了用碳酸或氰基丙酸锚定末端修饰的低聚噻吩（四聚体、八聚体、十二聚体），并在染料敏化太阳能电池（DSSC）中作为活性染料进行了测试。采用氰基丙酸锚定修饰的十二聚体的DSSCs在AM1.5太阳模拟器的照射下具有良好的光电转换效率，达到4.0%。 3．用于高性能 OFET 的自组装、可溶液加工的有机半导体；我们发现，大的、刚性的、平面的n-共轭结构与长烷基链的组合可以产生高度可溶和自组装的有机半导体。通过这种方法，获得了场效应迁移率高达 2.7 cm^2/Vs 的溶液处理 OFET。4．基于低硫代醌分子的功能染料：成功合成了二氰基亚甲基取代的低硫代醌类化合物直至六聚体。根据寡硫代醌链的长度，低聚物的吸收带通过可见光区域（一角硬币和哑铃）从紫外（单体）转移到近红外（四聚体）。有趣的是，五聚体和六聚体再次在可见光区域显示出吸收带。通过加入具有“低聚噻吩”结构而不是“低聚硫代醌”结构的开壳香料，这些现象在实验和理论上得到了合理化。较少的

项目成果

高移動度, 高安定性の有機薄膜トランジスタ材料の開発

高迁移率、高稳定性有机薄膜晶体管材料的开发

• 发表时间: 2006
• 作者: K. Maeda;T. Hara;Ko Furukawa;T. Nakamura;毛利哲夫;Y. Tanaka and K. Yonemitsu;瀧宮 和男
• 通讯作者: 瀧宮 和男

Fermi surface of the organic superconductor (MDT-ST)(13)_<0.417> reconstructed by incommensurate potential

不通约势重构的有机超导体费米面(MDT-ST)(13)_<0.417>

• 发表时间: 2006
• 期刊: PHYSICAL REVIEW B Vol73
• 作者: T.Kawamoto;T.Mori;K.Enomoto;T.Konoike;T.Terashima;S.Uji;A.Takamori;K.Takimiya;T.Otsubo
• 通讯作者: T.Otsubo

2,7-Diphenyl[1]benzoselenopheno[3,2-b][1]benzoselenophene as Stable Organic Semiconductor for High-Performance Field-Effect Transistor,

2,7-二苯基[1]苯并硒酚[3,2-b][1]苯并硒酚作为高性能场效应晶体管的稳定有机半导体，

• 发表时间: 2006
• 期刊: J. Am. Chem. Soc. 128
• 作者: H. Ebata;et. al.;青木勝敏;K. Takimiya al.
• 通讯作者: K. Takimiya al.

Effects of Extension or Prevention of π-Conjugation on Photoinduced Electron Transfer Processes of Ferrocene-Oligothiophene-Fullerene Triads

π-共轭的延伸或阻止对二茂铁-低聚噻吩-富勒烯三元组光致电子转移过程的影响

• 发表时间: 2006
• 期刊: J. Phys. Chem. A 110
• 作者: T. Otsubo;et. al.
• 通讯作者: et. al.

進化する有機半導体

不断发展的有机半导体

• 发表时间: 2006
• 作者: Y.Yoshida;et al.;吉田雪子;Y.Yoshida;S.Nakajima;S.Moribe;Y.Yamamoto;M.Yamaji;Y.Nagano;M.Yamaji;T.Ikoma;F.Ito;K.Akiyama;Y.Kobori;H.Ikeda;T.Ikoma;生駒忠明
• 通讯作者: 生駒忠明