Construction of the single molecule electroluminescence devices using insulated conducting polymers

使用绝缘导电聚合物构建单分子电致发光器件

基本信息

批准号：
17201024
负责人：
ITO Kohzo
金额：
$ 24.88万
依托单位：
The University of Tokyo
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 2006
项目状态：
已结题

项目摘要

The goal of this project is to construct one-dimensional supramolecular structure consisting of optically functional conducting polymers and insulating molecules, evaluating the potential application as a single-molecular electroluminescence device.Several methods were explored to construct insulated molecular wires (IMW): Synthesis of IMW consisting of cyclic molecules (e. g. cyclodextrins) and electroluminescent conducting polymers (e. g. polythiophenes), self-assembly of conducting polymers into 1-D nanowires, and template wetting with anodic alumina porous template and solutions of insulating molecules and conducting polymers. We obtained polythiophene nanofibers with the rectangular cross section of height 3-4 nm and width 24-27 nm. The nanofiber length longer than several um indicates their high aspect ratio on the order of 10^3.This research also revealed that the interface between metal and 1-D supramolecular structure is so important for the construction of organic electronic devices that the electric contact of polymers with metals affects the device performance significantly in electrical and luminescent properties. In this project, we found the chemisorption behavior of polythiophene onto gold substrate: When poly (alkylthiophene) molecules are immersed with gold substrate in toluene solution, the rings of polythiophene open and form specific bond with gold substrate self-assemblingly. The chemisorption reduced the contact resistance and improved the FET performance of poly (alkylthiophene) considerably. We also succeeded in the end modification of polythiophenes with selenols, forming specific bonds with metals. As a result of applying this molecule to single molecule force spectroscopy (SMFS) using an atomic force microscope (AFM), a close relation between conformation and optical properties of conducting polymers was revealed in a single molecular scale.

该项目的目的是构建由光学功能性传导聚合物和绝缘分子组成的一维超分子结构，评估潜在的应用作为单分子电发光设备。探索了几个族裔方法。用于构建隔离的分子电线（IMW）：IMW的IMW：IMW组成的cyclim cyclim and cyrem cytry cytre cy. g。导电聚合物（例如，聚息烯），将聚合物引导成1-D纳米线的自组装，以及用阳极氧化铝多孔模板和绝缘分子和导电聚合物的溶液进行润湿。我们获得了高度为3-4 nm和宽度24-27 nm的矩形横截面的聚噻吩纳米纤维。纳米纤维长度长于几个UM表示它们在10^的顺序上的高纵横比3.这项研究还表明，金属和1-D超分子结构之间的接口对于有机电子设备的构建非常重要，以至于聚合物与金属的电接触在电气和发光特性中显着影响设备的性能。在该项目中，我们发现聚噻吩在金底物上的化学吸附行为：当聚（烷基噻吩）分子与金底物浸入甲苯溶液中时，聚噻吩的环开了，并与金底物自组合形成特异性键。化学吸收可大大降低接触电阻，并大大提高聚（烷基噻吩）的FET性能。我们还成功地用硒醇对聚噻吩进行了成功，形成了与金属的特定键。由于使用原子力显微镜（AFM）将该分子应用于单分子力光谱（SMFS），因此在单分子尺度上揭示了构象与导电聚合物的光学特性之间的密切关系。

项目成果

期刊论文数量（30）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Synthesis of a Molecular Tube in an Organic Solvent and Its Inclusion Complexation Behavior with Poly (ethylene oxide-ran-propyleneoxide)

有机溶剂中分子管的合成及其与聚环氧乙烷-环氧丙烷的包合络合行为

DOI：
发表时间：
2008
期刊：
Macromolecules 印刷中(掲載確定)
影响因子：
0
作者：
K. Onodera;Y. Sugiyama;H. Haruta;Y. Oshima;T. Koike;Y. Murakoshi;T. Sasaki;K. Miyazawa;Sadaki Samitsu
通讯作者：
Sadaki Samitsu

Conductivity measurements of individual poly(3,4-ehtlenedioxythiophene)/poly(styrenesfulfonate) nanowires on nanoelectrodes using manipulation with an atomic force microscope

使用原子力显微镜操作纳米电极上单个聚（3,4-乙烯二氧噻吩）/聚（苯乙烯磺酸盐）纳米线的电导率测量

DOI：
发表时间：
2005
期刊：
Applied Physics Letters 86・23
影响因子：
0
作者：
Tetsu Kitamura;Sadaki Samitsu;Tetsu Kitamura;Sadaki Samitsu;Tetsu Kitamura;Takeshi Shimomura;Sadaki Samitsu;Sadaki Samitsu
通讯作者：
Sadaki Samitsu

高分子1本の導電性を測る-分子配線としての可能性を探る-

测量单一聚合物的电导率 -探索其作为分子布线的潜力-