A rubberlike stretchable active matrix using elastic conductors

被引:1203
作者
Sekitani, Tsuyoshi [1 ]
Noguchi, Yoshiaki [1 ]
Hata, Kenji [2 ]
Fukushima, Takanori [3 ,4 ]
Aida, Takuzo [3 ,4 ]
Someya, Takao [1 ,5 ]
机构
[1] Univ Tokyo, Sch Engn, Quantum Phase Elect Ctr, Bunkyo Ku, Tokyo 1138656, Japan
[2] Natl Inst Adv Ind Sci & Technol, Res Ctr Adv Carbon Mat, Tsukuba, Ibaraki 3058565, Japan
[3] Univ Tokyo, Sch Engn, Dept Chem & Biotechnol, Bunkyo Ku, Tokyo 1138656, Japan
[4] Natl Museum Emerging Sci & Innovat, Nanospace Project Exploratory Res Adv Technol Sol, Japan Sci & Technol Agcy, Koto Ku, Tokyo 1350064, Japan
[5] Univ Tokyo, Collaborat Inst Nano Quantum Informat Elect, Meguro Ku, Tokyo 1538505, Japan
关键词
D O I
10.1126/science.1160309
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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.
引用
收藏
页码:1468 / 1472
页数:5
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