Sekitani Tsuyoshi, Noguchi Yoshiaki, Hata Kenji, Fukushima Takanori, Aida Takuzo, Someya Takao
Quantum-Phase Electronics Center, School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
Science. 2008 Sep 12;321(5895):1468-72. doi: 10.1126/science.1160309. Epub 2008 Aug 7.
By using an ionic liquid of 1-butyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide, we uniformly dispersed single-walled carbon nanotubes (SWNTs) as chemically stable dopants in a vinylidene fluoride-hexafluoropropylene copolymer matrix to form a composite film. We found that the SWNT content can be increased up to 20 weight percent without reducing the mechanical flexibility or softness of the copolymer. The SWNT composite film was coated with dimethyl-siloxane-based rubber, which exhibited a conductivity of 57 siemens per centimeter and a stretchability of 134%. Further, the elastic conductor was integrated with printed organic transistors to fabricate a rubberlike active matrix with an effective area of 20 by 20 square centimeters. The active matrix sheet can be uniaxially and biaxially stretched by 70% without mechanical or electrical damage. The elastic conductor allows for the construction of electronic integrated circuits, which can be mounted anywhere, including arbitrary curved surfaces and movable parts, such as the joints of a robot's arm.
通过使用1-丁基-3-甲基咪唑双（三氟甲磺酰）亚胺离子液体，我们将单壁碳纳米管（SWNTs）作为化学稳定的掺杂剂均匀分散在偏二氟乙烯-六氟丙烯共聚物基体中，以形成复合膜。我们发现，在不降低共聚物机械柔韧性或柔软度的情况下，SWNT含量可以提高到20重量百分比。SWNT复合膜涂有基于二甲基硅氧烷的橡胶，其电导率为57西门子每厘米，拉伸率为134%。此外，将弹性导体与印刷有机晶体管集成，以制造有效面积为20×20平方厘米的类橡胶有源矩阵。该有源矩阵片材可以单轴和双轴拉伸70%而不会受到机械或电气损坏。这种弹性导体能够构建电子集成电路，其可以安装在任何地方，包括任意曲面和可移动部件，如机器人手臂的关节处。
