期刊
NATURE NANOTECHNOLOGY
卷 6, 期 12, 页码 788-792出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/NNANO.2011.184
关键词
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资金
- US Intelligence Community Postdoctoral Fellowship
- Stanford Global Climate and Energy Program
- Agency for Science Technology and Research (A*STAR)
Transparent, elastic conductors are essential components of electronic and optoelectronic devices that facilitate human interaction and biofeedback, such as interactive electronics(1), implantable medical devices(2) and robotic systems with human-like sensing capabilities(3). The availability of conducting thin films with these properties could lead to the development of skin-like sensors(4) that stretch reversibly, sense pressure (not just touch), bend into hairpin turns, integrate with collapsible, stretchable and mechanically robust displays(5) and solar cells(6), and also wrap around non-planar and biological(7-9) surfaces such as skin(10) and organs(11), without wrinkling. We report transparent, conducting spray-deposited films of single-walled carbon nanotubes that can be rendered stretchable by applying strain along each axis, and then releasing this strain. This process produces spring-like structures in the nanotubes that accommodate strains of up to 150% and demonstrate conductivities as high as 2,200 S cm(-1) in the stretched state. We also use the nanotube films as electrodes in arrays of transparent, stretchable capacitors, which behave as pressure and strain sensors.
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