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Inkjet Printing of Self‐Assembled 2D Titanium Carbide and Protein Electrodes for Stimuli‐Responsive Electromagnetic Shielding
Journal article   Open access   Peer reviewed

Inkjet Printing of Self‐Assembled 2D Titanium Carbide and Protein Electrodes for Stimuli‐Responsive Electromagnetic Shielding

Mert Vural, Abdon Pena‐Francesch, Joan Bars‐Pomes, Huihun Jung, Hemanth Gudapati, Christine B Hatter, Benjamin D Allen, Babak Anasori, Ibrahim T Ozbolat, Yury Gogotsi, …
Advanced functional materials, v 28(32), pp 1801972-n/a
08 Aug 2018
DOI: https://doi.org/10.1002/adfm.201801972
url
https://doi.org/10.1002/adfm.201801972View
Published, Version of Record (VoR) Open

Abstract

synthetic protein inkjet printing electromagnetic interference shielding responsive electrodes MXene
2D titanium carbides (MXene) possess significant characteristics including high conductivity and electromagnetic interference shielding efficiency (EMI SE) that are important for applications in printed and flexible electronics. However, MXene‐based ink formulations are yet to be demonstrated for proper inkjet printing of MXene patterns. Here, tandem repeat synthetic proteins based on squid ring teeth (SRT) are employed as templates of molecular self‐assembly to engineer MXene inks that can be printed as stimuli‐responsive electrodes on various substrates including cellulose paper, glass, and flexible polyethylene terephthalate (PET). MXene electrodes printed on PET substrates are able to display electrical conductivity values as high as 1080 ± 175 S cm−1, which significantly exceeds electrical conductivity values of state‐of‐the‐art inkjet‐printed electrodes composed of other 2D materials including graphene (250 S cm−1) and reduced graphene oxide (340 S cm−1). Furthermore, this high electrical conductivity is sustained under excessive bending deformation. These flexible electrodes also exhibit effective EMI SE values reaching 50 dB at films with thicknesses of 1.35 µm, which mainly originate from their high electrical conductivity and layered structure. Inkjet printing of 2D titanium carbide (MXene) crystals facilitated with the help of synthetic proteins offers novel sensor electrodes and effective electromagnetic shielding for printed electronics. This study presents an alternative method to alter solution properties of MXene sheets and making them suitable for inkjet printing using synthetic proteins.

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177 citations in Web of Science
278 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Chemistry, Multidisciplinary
Chemistry, Physical
Materials Science, Multidisciplinary
Nanoscience & Nanotechnology
Physics, Applied
Physics, Condensed Matter
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