Formation of photoconductive nanowires of tetracene derivative in composite thin film.
Tsuyoshi Suzuki, Toshihiro Okamoto, Akinori Saeki, Shu Seki, Hiroyasu Sato, Yutaka Matsuo
Department of Chemistry, School of Science, The University of Tokyo, 7-3-1 Hongo, Tokyo 113-0033, Japan.
ACS applied materials & interfaces 2013 MarNanowires of tetracene dicarboxylic imide disulfide with an N-hexyl substituent (HexylTIDS) were successfully constructed in composite thin film containing poly(3-hexylthiophene) (P3HT). The nanowire structures were investigated by atomic force microscopy and scanning electron microscopy. The photoconductivity of the composite films was evaluated by time-resolved microwave conductivity measurements, revealing that the film containing a 1:1 w/w ratio of HexylTIDS and P3HT exhibited the highest photoconductivity (2.1 × 10(-7) m(2)/(V s)). The intermolecular interactions of HexylTIDS molecules were important in nanowire formation. These results suggest a one-step method for fabricating small-molecule-based nanowires in composite films from a blended solution. This type of composite film, and its fabrication method, will be useful for developing organic thin-film photoelectronic devices.
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Tsuyoshi Suzuki, Toshihiro Okamoto, Akinori Saeki, Shu Seki, Hiroyasu Sato, Yutaka Matsuo. Formation of photoconductive nanowires of tetracene derivative in composite thin film. ACS applied materials & interfaces. 2013 Mar;5(6):1937-42
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PMID: 23438387
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