Supramolecular formation of fibrous nanostructure in donor-acceptor dyad Mint

被引：64

作者：

Nishizawa, Takeshi ^{[1
]}

Tajima, Keisuke ^{[1
]}

Hashimoto, Kazuhito ^{[1
]}

机构：

[1] Univ Tokyo, Grad Sch Engn, Dept Appl Chem, Bunkyo Ku, Tokyo 1138656, Japan

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2007年 / 17卷 / 23期

关键词：

D O I：

10.1039/b701438d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A novel oligothiophene and its fullerene derivative were synthesized and their film morphologies were investigated. AFM images revealed that the oligothiciphene formed well-aligned fiber-like nanostructures in the film after being thermally annealed at its liquid-crystal line temperature. In the oligothiophene-fullerene dyad film, fibers were already formed in the as-cast film. Thermal annealing further enhanced the structural order and a long, partially aligned fibrous nanostructure with a width of around 10 nm and a length of as long as 200 nm was observed. Combined with the results of X-ray analysis, these features were ascribed to supramolecular self-assembly via pi-pi interaction of the oligothiophene groups. Photovoltaic properties of the molecules were also investigated.

引用

页码：2440 / 2445

页数：6

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