Microstructure-tunable highly conductive graphene-metal composites achieved by inkjet printing and low temperature annealing

Jie Zhao, Man Song, Chenyu Wen, Subimal Majee, Dong Yang, Biao Wu, Shi Li Zhang, Zhi Bin Zhang

科研成果: 期刊稿件文章同行评审

5 引用 (Scopus)

摘要

We present a method for fabricating highly conductive graphene-silver composite films with a tunable microstructure achieved by means of an inkjet printing process and low temperature annealing. This is implemented by starting from an aqueous ink formulation using a reactive silver solution mixed with graphene nanoplatelets (GNPs), followed by inkjet printing deposition and annealing at 100 °C for silver formation. Due to the hydrophilic surfaces and the aid of a polymer stabilizer in an aqueous solution, the GNPs are uniformly covered with a silver layer. Simply by adjusting the content of GNPs in the inks, highly conductive GNP/Ag composites (>106 S m-1), with their microstructure changed from a large-area porous network to a compact film, is formed. In addition, the printed composite films show superior quality on a variety of unconventional substrates compared to its counterpart without GNPs. The availability of composite films paves the way to the metallization in different printed devices, e.g. interconnects in printed circuits and electrodes in energy storage devices.

源语言英语
文章编号035006
期刊Journal of Micromechanics and Microengineering
28
3
DOI
出版状态已出版 - 31 1月 2018
已对外发布

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