Recent years have witnessed the booming development of flexible electronics. To date, it is still a great challenge to fabricate high conductive paper based electrodes with both low cost and high stability. Here we propose a novel, facile and versatile approach to fabricate the highly flexible and conductive papers, textiles and fibers by electroless deposition (ELD) of the copper nanoparticles with the assistance of polydopamine as the adhesion layer. Polydopamine plays the key role which not only assisted the electroless deposition of copper nanoparticles on the paper, but also enhanced the adhesion strength between metal nanoparticles and substrates. The obtained Cu NPs coated papers were highly conductive with a significant low resistance of 0.1 Ω sq<sup>-1</sup> with ELD time for only 10 min and their mechanical stability performed very well. Notably, these conductive papers and textiles has the excellent hydrophobic and photothermal conversion properties which could be used as wearable and self-cleaning electronics. In a word, this low-costed method could be easily scaled up to large-scale fabrication of conductive papers and opened up new opportunities for flexible and wearable electronics.

Polydopamine assisted Cu NPs deposition on biomass substrates for flexible, wearable and self-cleaning electronics

255th National Meeting (2018)

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