Self-patterned stretchable electrode based on silver nanowire bundle mesh developed by liquid bridge evaporation

Eun Young An, Siyoung Lee, Seung Goo Lee, Eunho Lee, Jeong Ju Baek, Gyojic Shin, Kyung Ho Choi, Jeong Ho Cho, Geun Yeol Bae

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

A new strategy is required to realize a low-cost stretchable electrode while realizing high stretchability, conductivity, and manufacturability. In this study, we fabricated a self-patterned stretchable electrode using a simple and scalable process. The stretchable electrode is composed of a bridged square-shaped (BSS) AgNW bundle mesh developed by liquid bridge evaporation and a stretchable polymer matrix patterned with a microcavity array. Owing to the BSS structure and microcavity array, which effectively concentrate the applied strain on the deformable square region of the BSS structure under tensile stretching, the stretchable electrode exhibits high stretchability with a low ∆R/R0 of 10.3 at a strain of 40%. Furthermore, by exploiting the self-patterning ability— attributable to the difference in the ability to form liquid bridges according to the distance between microstructures—we successfully demonstrated a stretchable AgNW bundle mesh with complex patterns without using additional patterning processes. In particular, stretchable electrodes were fabricated by spray coating and bar coating, which are widely used in industry for low-cost mass production. We believe that this study significantly contributes to the commercialization of stretchable electronics while achieving high performance and complex patterns, such as stretchable displays and electronic skin.

Original languageEnglish
Article number2865
JournalNanomaterials
Volume11
Issue number11
DOIs
Publication statusPublished - 2021 Nov

Bibliographical note

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

All Science Journal Classification (ASJC) codes

  • General Chemical Engineering
  • General Materials Science

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