Reversible Conductive Inkjet Printing of Healable and Recyclable Electrodes on Cardboard and Paper

Reversible functional inkjet printing is introduced as a new route to paper ‐ and cardboard‐based electronics. Hybrid metal‐polymer nanoparticle inks are combined with tailored paper coats to create conductive structures on low‐cost cardboard substrates without sintering. The conductive particles can be redispersed in liquid, which makes it possible to repair damage s after bending and folding. AbstractConductive inkjet printing with metal nanoparticles is irreversible because the particles are sintered into a continuous metal film. The resulting structures are difficult to remove or repair and prone to cracking. Here, a hybrid ink is used to obviate the sintering step and print interconnected particle networks that become highly conductive immediately after drying. It is shown that reversible conductive printing is possible on low ‐cost cardboard samples after applying standard paper industry coats that are adapted in terms of surface energy and porosity. The conductivity of the printed films approaches that of sintered standard inks on the same substrate, but the mobility of the hybrid particle film makes them less sensiti ve to cracks during bending and folding of the substrate. Damages that occur can be partially repaired by wetting the film such that particle mobility is increased and particles move to bridge insulating gaps in the film. It is demonstrated that the conductive material can be recovered from the card board at the end of its life time and be redis...
Source: Small - Category: Nanotechnology Authors: Tags: Communication Source Type: research

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Source: Sensors and Actuators B: Chemical - Category: Chemistry Source Type: research
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Source: Colloids and Surfaces B: Biointerfaces - Category: Biochemistry Source Type: research
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Source: IET Nanobiotechnology - Category: Nanotechnology Source Type: research
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Source: Chemical Engineering Journal - Category: Chemistry Source Type: research
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Source: A&A Case Reports - Category: Anesthesiology Tags: Case Reports Source Type: research
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Source: Perfusion - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Perfusion Source Type: research
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