A rubberlike stretchable active matrix using elastic conductors
A rubberlike stretchable active matrix using elastic conductors
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DOI：
10.1126/science.1160309
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发表时间：
2008-09-12
期刊：
影响因子：
56.9
通讯作者：
Someya, Takao
中科院分区：
文献类型：
--
作者：
Sekitani, Tsuyoshi;Noguchi, Yoshiaki;Someya, Takao
通过使用1-丁基-3-甲基咪唑双（三氟甲磺酰基）酰亚胺离子液体，将单壁碳纳米管（SWNTs）作为化学稳定的掺杂剂均匀分散在偏氟乙烯-六氟丙烯共聚物基体中，形成复合膜。我们发现，单壁碳纳米管的含量可以增加到20重量%，而不会降低共聚物的机械柔韧性或柔软性。单壁碳纳米管复合膜涂覆有基于二甲基硅氧烷的橡胶，其表现出57西门子/厘米的电导率和134%的拉伸性。此外，将弹性导体与印刷有机晶体管集成，制成有效面积为20 x 20平方厘米的橡胶状有源矩阵。有源矩阵片可以单轴和双轴拉伸70%，而不会造成机械或电气损坏。弹性导体允许构造电子集成电路，其可以安装在任何地方，包括任意弯曲表面和可移动部件，例如机器人手臂的关节。
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.