Transistor Properties of Novel Organic Conducting Polymers Bearing Tetrathiafulvalene Units in the Backbone
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概要
- 論文の詳細を見る
The organic field-effect transistor (OFET) properties of conducting polymers bearing a tetrathiafulvalene (TTF) unit in the backbone whose termini are capped with functional groups were investigated. The OFET devices were fabricated by a solution process under various fabrication conditions. All the devices showed typical p-type semiconducting behavior as expected from the electron-donating properties of TTF derivatives. Cast films exhibited higher field-effect mobilities than spin-coated films. Surface treatment with organic silane molecules produced no noticeable effects. When using thioacetyl-capped polymer, treatment of the OFET device in an ammonia atmosphere resulted in a field-effect mobility one order of magnitude higher than that of the pristine film. By contrast, there was no such enhancement with ethyl acetate-capped polymer. Atomic force microscopy observations revealed that the ammonia treatment promoted the ordering of the polymer chain, which resulted in improved electronic conduction.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2010-01-25
著者
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TORIMITSU Keiichi
NTT Basic Research Laboratories
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Goto Touichiro
Ntt Basic Res. Lab. Kanagawa Jpn
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FURUKAWA Kazuaki
NTT Basic Research Laboratories
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Kashimura Yoshiaki
Ntt Basic Research Laboratories Ntt Corporation
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Nakashima Hiroshi
Ntt Basic Research Laboratories Ntt Corporation
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Hu Wenping
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Kashimura Yoshiaki
NTT Basic Research Laboratories, NTT Corporation, Atsugi, Kanagawa 243-0198, Japan
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Wang Erjing
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Li Hongxiang
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
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