Direct Writing of Additive-Free MXene-in-Water Ink for Electronics and Energy Storage

Evan Quain, Tyler S. Mathis, Narendra Kurra, Kathleen Maleski, Katherine L. Van Aken, Mohamed Alhabeb, Husam N. Alshareef, Yury Gogotsi

Research output: Contribution to journalArticlepeer-review

47 Scopus citations

Abstract

Additive-free, single step formulations of MXene-in-water inks are developed from clay-like titanium carbide (Ti3C2) sediments. Solution-processable Ti3C2 inks are compatible with stamping, printing, painting, and writing on a variety of substrates. Specifically, MXene-in-water inks at higher concentrations of 30 mg mL−1 are employed in commercially available pens for dispensing and patterning 2D MXene directly. These MXene pens are employed either manually or automatically using an AxiDraw, enabling direct-writing and complex patterning of functional MXene devices. Versatile MXene pens show compatible writing on a variety of substrates, including paper and polymers, where the deposited ink is used as a passive circuit, similar to silver and copper nanoparticle inks. Written MXene lines without additional post-treatment exhibit length dependent resistance, showing typical resistivity values between carbon based and metal nanoparticle inks. Current collector-free fabrication of MXene micro-supercapacitors is demonstrated on unconventional platforms including paper, textiles, and curved surfaces directly.
Original languageEnglish (US)
Pages (from-to)1800256
JournalAdvanced Materials Technologies
Volume4
Issue number1
DOIs
StatePublished - Sep 5 2018

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