Structural and electrical properties of organic conducting polymers bearing tetrathiafulvalene backbone

Yoshiaki Kashimura; Touichiro Goto; Kazuaki Furukawa; Erjing Wang; Hongxiang Li; Wenping Hu; Keiichi Torimitsu

doi:10.1080/15421400902950261

Structural and electrical properties of organic conducting polymers bearing tetrathiafulvalene backbone

Yoshiaki Kashimura, Touichiro Goto, Kazuaki Furukawa, Erjing Wang, Hongxiang Li, Wenping Hu, Keiichi Torimitsu

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Abstract

The structural and electrical properties of a new organic conducting polymer bearing a tetrathiafulvalene backbone whose termini are capped with the thioacetyl group were investigated. AFM observations indicated that on a gold surface, the polymers form rigid rod-like structures with a stretched length of about 50nm, which is comparable to its average length (∼60nm). The current-voltage characteristic exhibited semiconducting behavior with a conductivity of 1.0×10^-5 Scm^-1. A doping measurement was also performed using iodine. The current was enhanced 10 ²-10⁴ times after doping indicating the highly electron-donating nature of the polymer.

Original language	English
Pages (from-to)	231-237
Number of pages	7
Journal	Molecular Crystals and Liquid Crystals
Volume	504
Issue number	1
DOIs	https://doi.org/10.1080/15421400902950261
Publication status	Published - 2009 Jan 1

Keywords

Current-voltage characteristic
Doping effect
Organic conducting polymer
Rigid polymer
Tetrathiafulvalene

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10.1080/15421400902950261

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AU - Kashimura, Yoshiaki

AU - Goto, Touichiro

AU - Furukawa, Kazuaki

AU - Wang, Erjing

AU - Li, Hongxiang

AU - Hu, Wenping

AU - Torimitsu, Keiichi

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AB - The structural and electrical properties of a new organic conducting polymer bearing a tetrathiafulvalene backbone whose termini are capped with the thioacetyl group were investigated. AFM observations indicated that on a gold surface, the polymers form rigid rod-like structures with a stretched length of about 50nm, which is comparable to its average length (∼60nm). The current-voltage characteristic exhibited semiconducting behavior with a conductivity of 1.0×10-5 Scm-1. A doping measurement was also performed using iodine. The current was enhanced 10 2-104 times after doping indicating the highly electron-donating nature of the polymer.

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Structural and electrical properties of organic conducting polymers bearing tetrathiafulvalene backbone

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