Zhou, Ye;
Xu, Zongpu;
Bai, Hao;
Knapp, Caroline E;
(2023)
Room Temperature Electronic Functionalization of Thermally Sensitive Substrates by Inkjet Printing of a Reactive Silver‐Based MOD Ink.
Advanced Materials Technologies
, Article 2201557. 10.1002/admt.202201557.
(In press).
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Abstract
The developments in inkjet printing technology and the printed electronics industry in the past two decades have provided cost-effective, environment-friendly, and reliable alternates to traditional methods of fabricating electrical devices. However, most commercial metallic inks require high sintering temperatures to form desired functional patterns, which limits the applications of printed electronics in scenarios that require electrical devices on thermally sensitive substrates, like biomaterials or bio-synthetic composite materials. This study has provided the synthetic route of a novel silver-based metal organic decomposition (MOD) ink which has been used to form highly conductive silver films on the thermally sensitive skin-inspired silk/epoxy composite substrates by directly inkjet printing with accurate pattern control, whilst self-decomposing and sintering at room temperature. The fabricated silver patterns on the thermally sensitive silk/epoxy composite substrate were highly conductive with conductivity of 4.65 × 104 S m−1. These silver patterns also showed impressive malleability as bulk silver films, which could be further developed into motion sensors for wearable devices or medical applications. Our strategy provides a general platform for electronic functionalization without temperature constraints. The particle-free, reactive silver-precursor, and lower sintering temperature of the ink also widen the choices of substrates, as exemplified herein with outstanding printing quality and high electrical conductivity (1.20 × 106 S m−1) also achieved on paper.
| Type: | Article |
|---|---|
| Title: | Room Temperature Electronic Functionalization of Thermally Sensitive Substrates by Inkjet Printing of a Reactive Silver‐Based MOD Ink |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/admt.202201557 |
| Publisher version: | https://doi.org/10.1002/admt.202201557 |
| Language: | English |
| Additional information: | © 2023 The Authors. Advanced Materials Technologies published by Wiley-VCH GmbH This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | conductive films, flexible substrates, inkjet printing, MOD inks, low temperature, silver precursors, stretchable electronics |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10163865 |
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