[Chemistry of Materials] Ultrafast Formation of Free-standing 2D Carbon Nanotube Thin films through Capillary Force Driving Compression on Air/Water Interface
writer：Peng Xiao, JC Gu, CJ Wan, S Wang, J He, JW Zhang, YJ Huang, Shiao-Wei Kuo, Tao Chen*
keywords：Capillary force, Langmuir-Blodgett, self-assembly, carbon nanotube thin film, sensor
source：期刊
specific source：Chemistry of Materials, 2016, 28, 7125–7133
Issue time：2016年
Langmuir-Blodgett (LB)
technique has been demonstrated as the most popular way to achieve freestanding
2D CNTs thin films on the surface of liquid, yet still suffers some
limitations such as the need of expensive instruments with complicated surface
pressure detecting and time consuming processes, and thus inaccessible to a large number of
researchers. Here,
we present a cheap, reliable and ultrafast strategy to fabricate free-standing
2D CNTs networks on air/water interface by a highly simplified LB method with
instruments free, yet only with porous materials assisted capillary force driving compression. The formation of free-standing 2D CNTs networks with
controlled thickness, transmittance and conductivity could be further
transferred to other various substrates. Growing polymer from one side of the
flexible CNTs network allows us to achieve 2D hybrid Janus materials of polymer
grafted CNTs thin films. This endows the conductive 2D CNTs hybrid networks
with responsive chemical functionality, which is highly important for scalable
developments as next generation flexible electronics in chemical sensing.