期刊
NANO LETTERS
卷 15, 期 3, 页码 1609-1614出版社
AMER CHEMICAL SOC
DOI: 10.1021/nl504150a
关键词
Ultralong fibers; aligned CNTs; controlled assembly; flexible electronics
类别
资金
- National Basic Research of China [2015CB932500, 2013CB632702]
- NSF of China [51302141]
Rapid construction of flexible circuits has attracted increasing attention according to its important applications in future smart electronic devices. Herein, we introduce a convenient and efficient writing approach to fabricate and assemble ultralong functional fibers as fundamental building blocks for flexible electronic devices. We demonstrated that, by a simple hand-writing process, carbon nanotubes (CNTs) can be aligned inside a continuous and uniform polymer fiber with length of more than 50 cm and diameters ranging from 300 nm to several micrometers. The as-prepared continuous fibers exhibit high electrical conductivity as well as superior mechanical flexibility (no obvious conductance increase after 1000 bending cycles to 4 mm diameter). Such functional fibers can be easily configured into designed patterns with high precision according to the easy writing process. The easy construction and assembly of functional fiber shown here holds potential for convenient and scalable fabrication of flexible circuits in future smart devices like wearable electronics and three-dimensional (3D) electronic devices.
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