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Issue 23, 2007
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Supramolecular formation of fibrous nanostructure in donor–acceptor dyad film

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Abstract

A novel oligothiophene and its fullerene derivative were synthesized and their film morphologies were investigated. AFM images revealed that the oligothiophene formed well-aligned fiber-like nanostructures in the film after being thermally annealed at its liquid-crystalline 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 π–π interaction of the oligothiophene groups. Photovoltaic properties of the molecules were also investigated.

Graphical abstract: Supramolecular formation of fibrous nanostructure in donor–acceptor dyad film

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Publication details

The article was received on 30 Jan 2007, accepted on 19 Mar 2007 and first published on 03 Apr 2007


Article type: Paper
DOI: 10.1039/B701438D
Citation: J. Mater. Chem., 2007,17, 2440-2445
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    Supramolecular formation of fibrous nanostructure in donor–acceptor dyad film

    T. Nishizawa, K. Tajima and K. Hashimoto, J. Mater. Chem., 2007, 17, 2440
    DOI: 10.1039/B701438D

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