Photolithography-enabled direct patterning of liquid metals

Roozbeh Abbasi, Mohannad Mayyas, Mohammad B. Ghasemian, Franco Centurion, Jiong Yang, Maricruz Saborio, Francois Marie Allioux, Jialuo Han, Jianbo Tang, Michael J. Christoe, K. M. Mohibul Kabir, Kourosh Kalantar-Zadeh, Md Arifur Rahim

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

One of the major challenges in the development of soft electronics is to devise scalable and automated strategies for the microfabrication of deformable and flexible electronic components and sensors. Liquid metals have demonstrated unique characteristics suitable for such applications. To date, conductive patterning using liquid metals has mainly focused on writing or injection of liquid metals into prefabricated channels, requiring multiple complicated procedures and reliance on specific inks formulae. Here a new strategy has been introduced for direct patterning of liquid metal particles onto substrates via UV photolithography. A variety of different tracks, patterns and sensors, on both rigid and flexible substrates, are demonstrated using a dispersion of eutectic alloy of gallium and indium in photoresist, to present the extent of capability of the introduced method. The method provides simple, effective, high-resolution and precision patterning of liquid metals for the emerging fields of soft electronics and sensors.

Original languageEnglish
Pages (from-to)7805-7811
Number of pages7
JournalJournal of Materials Chemistry C
Volume8
Issue number23
DOIs
StatePublished - 21 Jun 2020
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry

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