Cambridge Graphene Centre, University of Cambridge , Cambridge CB3 0FA, United Kingdom.
Microfluidics International Corporation , Westwood, Massachusetts 02090, United States.
ACS Nano. 2017 Mar 28;11(3):2742-2755. doi: 10.1021/acsnano.6b07735. Epub 2017 Feb 20.
We report the exfoliation of graphite in aqueous solutions under high shear rate [∼ 10 s] turbulent flow conditions, with a 100% exfoliation yield. The material is stabilized without centrifugation at concentrations up to 100 g/L using carboxymethylcellulose sodium salt to formulate conductive printable inks. The sheet resistance of blade coated films is below ∼2Ω/□. This is a simple and scalable production route for conductive inks for large-area printing in flexible electronics.
我们报告了在高剪切速率[10 s]湍流条件下，石墨在水溶液中的剥落，剥落率达到 100%。该材料在 100 g/L 浓度下使用羧甲基纤维素钠盐稳定，无需离心即可实现，可用于配制导电可印刷油墨。刮刀涂布薄膜的方阻低于2Ω/□。这是一种用于大面积打印柔性电子器件的导电油墨的简单且可扩展的生产路线。
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